Peptide tracking is a 2026 niche. 32 apps, 29 of them launched in the last 18 months, and those newcomers hold 98% of the review pace. No app sits above the $10–20k band. Eight apps carry researched bands, seven of them at $5–10k, and the niche's review pace is running 1.6x its own earlier rate. The apps do dose math, vial inventory, injection sites, and a log. The complaint that runs through the leaders: the calculator is behind the paywall, and the log does not do what the listing promised.
Appaloma readings · Peptides, TRT & compounds · 2026-08-30
- OpeningOpenOpen when a quarter or more of the niche launched in the last 18 months
- Demand66Revealed by rating velocity across the niche, 0–100
- Crowding15How much of the niche the top apps already hold, 0–100
- Apps322 researched over $20k a month
- New29launched in the last 18 months, holding 98% of the niche's review pace
- Floor$240k+a month, adding the band floors of 32 researched apps
What the niche is
Someone on a peptide protocol, TRT, or a cycle has three problems: reconstitution math (how much water into the vial, how many units on the syringe), a schedule with rotation across injection sites, and a record of what they took and how they felt. The apps do that. Some add estimated blood levels between doses, some add a supplier link.
It sits under diet programs and supplements. Eight sub-niches: dose logs and vial inventory (11 apps), dosing calculators (7), doses charted against how you feel (4), estimated blood levels between doses (3), TRT and steroid cycle logs (2), appearance scans with peptide sourcing (2), which peptide to run (2), and one combined peptide and TRT compound tracker.
Who leads
| App | Since | Ratings | Stars | Prices | Band | |
|---|---|---|---|---|---|---|
| 1 |  Pep AI: Peptide GLP-1 TrackerZode Development LLC | Feb 2026 | 3,069 | 4.8 | $3.99–$44.99 | $50–250k |
| 2 |  Milligram - Peptide TrackerEnzo Anderson | Feb 2026 | 186 | 4.7 | $9.99–$69.99 | $20–50k |
| 3 |  Peptide Tracker: PeptProVirex Tech LLC | May 2026 | 381 | 4.6 | $9.99–$59.99 | $10–20k |
| 4 |  Peptides CalculatorSphnix, Inc | Apr 2025 | 166 | 4.3 | $6.99–$119.99 | $10–20k |
| 5 |  PepIQ: Shop & Scan PeptidesMad Apps LLC | May 2026 | 99 | 4.7 | $7.99–$44.99 | $10–20k |
| 6 |  Pepty: GLP-1 & Peptide Trackerqlabs | Apr 2026 | 78 | 4.8 | $6.99–$69.99 | $10–20k |
| 7 |  PeptidePal – Peptide TrackerBlank Labs LLC | Apr 2026 | 3,665 | 4.7 | $8.99–$59.99 | $5–10k |
| 8 |  Peptide Tracker Log & ReminderFlat Six Labs LLC | May 2026 | 1,350 | 4.9 | $5–$80 | $5–10k |
| 9 |  PepCalc: Peptide CalculatorAwesome Labs LLC | Jul 2020 | 947 | 4.8 | $9.99 | $5–10k |
| 10 |  Peptide Calculator AppZipoApps | Feb 2024 | 537 | 4.4 | $4.99–$29.99 | $5–10k |
Band: our researched estimate of peak monthly revenue, published only for apps we have researched one by one. Every app in the catalog sits above the $5k a month floor.
No incumbent. The oldest app in the top ten, PepCalc, launched in July 2020 as a $9.99 paid calculator and has 947 ratings in six years. Everything above it is months old.
PeptidePal launched in April 2026 and reached 3,665 ratings in four months, 909 a month, the fastest in the niche. Its listing bundles GLP-1 shots, research peptides, and TRT into one log with a reconstitution calculator and an AI advisor. Pep AI launched in February 2026, 3,069 ratings, 517 a month, and sells inventory tracking for the stacking crowd. Peptide Tracker Log & Reminder launched in May 2026 and adds 358 ratings a month on a plain log and reminder.
PepIQ is the outlier. Launched May 2026, 99 ratings, and the only app in the $10–20k band. It sells a face and physique scan, peptide education, and a supplier shop inside the app. A band on that few ratings means the price does the work.
Injectly is the counterexample: no ads, no subscription, no account required, and still in the $5–10k band on 315 ratings.
How they make money
Three shapes, all cheap.
Weekly at $5.99 to $7.99 and yearly at $29.99 to $47.99. PepKit, Pep AI, PepTracker, and PepIQ all land here.
Monthly at $4.99 to $9.99, with PeptPro the outlier at $24.99 a month and $39.99 to $59.99 a year.
One paid app and one lifetime. PepCalc has charged $9.99 up front since 2020. ZipoApps sells a $29.99 lifetime plan across a 134-app portfolio.
No leader with a price sheet charges more than $59.99 a year.
The angles that get installs
- a dose log for TRT and steroid cycles3 apps
- peptides, GLP-1 and TRT in one dose log3 apps
Seventeen of 32 apps lead with the calculator: put in the vial size and the water, get the units on the syringe. The second angle is the stack log: many compounds, one schedule, where you last injected. The third is the cycle log for TRT.
Five of twelve leader listings put GLP-1 or TRT beside peptides, and the two fastest on ratings, PeptidePal and Pep AI, are among them. Seven of twelve listings promise vial inventory; the one star reviews of three leaders say the logged dose never comes off the vial.
What the one star reviews keep saying
“I downloaded it and was very excited because it was literally all my apps in one. I kept getting errors but I kept going. Then after I put everything in it…twice.. I was excited to start and ready to delete my other apps”Pep AI: Peptide GLP-1 Tracker, 2026-06-30
“don't waste” recurs in 4 of the top 12 apps“The app has potential, but the dosing functionality needs work before I would pay for a subscription. I tested three medications. With tirzepatide, I could select mg, mcg, or units and track my dose the way I actually ad”Pep AI: Peptide GLP-1 Tracker, 2026-08-09
“needs work” recurs in 4 of the top 12 apps“I asked it simple questions such as “what are some side effects of peptides such as Reta?” Guess the response? Censored. Couldn’t complete request. Did not have a good experience with it, and before the app responds that”Pep AI: Peptide GLP-1 Tracker, 2026-06-04
“doesn't work” recurs in 3 of the top 12 apps“The app has potential, but the dosing functionality needs work before I would pay for a subscription. I tested three medications. With tirzepatide, I could select mg, mcg, or units and track my dose the way I actually ad”Pep AI: Peptide GLP-1 Tracker, 2026-08-09
“free trial” recurs in 3 of the top 12 apps“I downloaded it and was very excited because it was literally all my apps in one. I kept getting errors but I kept going. Then after I put everything in it…twice.. I was excited to start and ready to delete my other apps”Pep AI: Peptide GLP-1 Tracker, 2026-06-30
“waste time” recurs in 3 of the top 12 apps“I bought this and so far I hate it! It’s not user friendly- I can’t figure out how to change anything and I had to pay to even see what it can do. I’d like a refund.”Pep AI: Peptide GLP-1 Tracker, 2026-05-26
“user friendly” recurs in 3 of the top 12 apps“I had such high hopes for this app with its beautiful user interface. however, after spending a lot of time, entering my peptide information, schedule and everything, I found that it randomly deletes everything and start”Pep AI: Peptide GLP-1 Tracker, 2026-07-13
“add peptides” recurs in 3 of the top 12 apps
Phrases that recur in one and two star reviews across 8 of the niche's top 12 apps.
Across eleven leaders with pooled reviews, three complaints.
The calculator is behind the paywall. Sign up, answer the questions, then pay before you can run one reconstitution. "Without paying" and "can't do anything" recur in the one star reviews of four leaders, and the reviews name the free web calculator they left for.
The log does not do the math it promised. "Log dose" recurs in three leaders, in reviews saying the dose never subtracts from the vial. "Won't let me" recurs in four; the quoted example is a past dose the log refused six weeks into a cycle. "Add peptides" recurs in three, in reviews about entries that duplicate or disappear.
No trial, charged up front. Two of twelve leader listings mention a trial. "Free trial" recurs nine times in the one star reviews of three leaders.
What works, from the five star side
"User friendly" recurs in the five star reviews of seven leaders, "highly recommend" in seven, "peptide calculator" in five, "keep track" in four. The quoted reviewers describe themselves as new to peptides and say the app walked them through the first cycle and kept the stack straight.
New in the last 18 months
- PeptidePal – Peptide TrackerApr 2026 · 3,665 ratings · $5–10k
- Pep AI: Peptide GLP-1 TrackerFeb 2026 · 3,069 ratings · $50–250k
- Peptide Tracker Log & ReminderMay 2026 · 1,350 ratings · $5–10k
- PepTracker: Dose LogJul 2025 · 432 ratings · $5–10k
- Peptide Calculator: PepCalcAug 2025 · 389 ratings · $5–10k
- Peptide Tracker: PeptProMay 2026 · 381 ratings · $10–20k
- Peptide Calculator: PepFlowMar 2025 · 356 ratings · $5–10k
- InjectlyMay 2025 · 315 ratings · $5–10k
Twelve entrants with over 100 ratings in 18 months, three of them already in the $5–10k band within their first four months. Rising reads 1.6x across five scored apps: the niche is accelerating, not settling.
What to copy and what to avoid
From the price sheets and the pooled reviews above.
Copy: the calculator as the front door. Seventeen of 32 apps lead with it, and "peptide calculator" recurs in the five star reviews of five leaders.
Copy: GLP-1 and TRT in the same log. Five of twelve leader listings do it, including PeptidePal and Pep AI, the two fastest on ratings.
Copy: the price shape on the sheets. Yearly at $29.99 to $47.99 across Pep AI, PepKit, PepIQ, and PepTracker; weekly at $5.99 to $7.99 on PepKit and PepIQ.
Avoid: a calculator behind the paywall. "Without paying" and "can't do anything" recur in the one star reviews of four leaders.
Avoid: charging up front with no trial. Two of twelve listings mention a trial; "free trial" recurs nine times in the one star reviews of three leaders.
Avoid: a log that will not take a past dose or subtract from the vial. Seven of twelve listings promise inventory; "log dose" recurs in three leaders' one star reviews and "won't let me" in four.
Our read: no app sits above the $10–20k band and Crowding is 15. The log that keeps its inventory promise is the open seat.
FAQ
Is the peptide tracker market saturated?
No. 32 apps, 29 launched in the last 18 months, Crowding 15 out of 100, and no app above the $10–20k band. Appaloma reads the niche as Open and its review pace at 1.6x its earlier rate.
Which peptide tracker apps make the most money?
PepIQ sits in the $10–20k a month band as of August 2026. Seven apps sit at $5–10k: PeptidePal, Pep AI, Peptide Tracker Log & Reminder, PepCalc, Peptide Calculator: PepCalc, Injectly, and PepKit.
What do users complain about in peptide tracker apps?
The reconstitution calculator sitting behind the paywall, logs that cannot add past doses or subtract a dose from the vial, and no free trial. Each recurs across three or more of the leading apps.
How do peptide tracker apps make money?
Weekly at $5.99 to $7.99 or yearly at $29.99 to $47.99. A few charge monthly at $4.99 to $9.99. PepCalc has sold as a $9.99 paid app since 2020, and Injectly earns a $5–10k band with no subscription at all.
What should a new peptide tracker app do differently?
Lead with the calculator and keep it free: seventeen apps lead with it, and the paywalled calculator is the complaint in four leaders. Ship a log that takes past doses and subtracts from the vial: seven of twelve listings promise inventory and the reviews of three say it does not happen. Price the year at $29.99 to $47.99, where the banded apps sit.