← Hemingway Performance

Hemingway Performance
vs OptiPin

Both track protocols and blood work. The real difference is whether you lift — and whether you want to look at your data on something bigger than a phone.

We make Hemingway Performance, so read this with that in mind. Everything below about OptiPin comes from their public App Store listing and website, checked August 2026. Apps change; check theirs before deciding.

The short version

Choose OptiPin if the protocol is the point

It goes deeper than we do on dose mechanics: ester-specific pharmacokinetic modelling for testosterone and estradiol that calibrates to your own bloodwork, reconstitution and unit calculators, one-tap blend presets, 200+ compounds, injection-site rotation and inventory with low-stock alerts. Everything stays on your device with no account. If you're running a complex stack and want the maths handled properly, that's a genuinely strong tool and we won't pretend otherwise.

Choose Hemingway Performance if you train seriously

We have a real workout logger — programs, supersets, rest timer, RPE, PRs, estimated 1RM and Beginner-to-Elite strength standards — plus an engine that reads your last session and sets the next session's weights for you. Your training sits on the same timeline as your body composition, your protocols and your labs. And there's a web dashboard, so you can review a year of blood work on a monitor instead of a phone screen.

Side by side

	Hemingway Performance	OptiPin
Workout logger	Yes — programs, RPE, PRs, 1RM, strength standards	Not a feature
Adaptive progression	Yes — next session's weights set from your last one	Not a feature
Blood work	Drop in a Labcorp or Quest PDF, every marker parsed and trended	Photo, manual entry, or Apple Health import
Dose modelling	Cycle countdowns, reminders, vial tracking	Deeper — PK modelling calibrated to your bloodwork
Reconstitution maths	Dosing calculator	Deeper — plus one-tap blend presets
Body composition	Up to 12 metrics from a smart scale, DEXA import	Via Apple Health
Web dashboard	Yes	iPhone only
Where data lives	Encrypted, isolated to your account, synced across devices	On your device, no account
Entry price	Free tier · $9.99/mo · $79/yr founding (full access)	Free for one compound · around $4.99/mo

Where they beat us, plainly

Dose modelling. Their pharmacokinetic estimates are more sophisticated than ours. We track cycles, doses and vials; they model projected concentration and calibrate it to your labs.
Privacy architecture. On-device with no account is a stronger guarantee than ours, and we won't pretend it isn't. Ours is encrypted and isolated to your account, and we use named service providers — hosting, payments, and the AI that reads your lab PDFs — all listed in our privacy policy. That's the trade for sync, a web dashboard and automatic PDF parsing.
Price. They're cheaper month to month. Our founding rate is better annually, but that's a limited window, not a permanent position.
Track record. They have hundreds of App Store ratings. We launched recently and have a handful of users. That's a real reason to be cautious about us.

Where we beat them

Training is a first-class feature, not an afterthought. If you're running a protocol and a serious training programme, OptiPin means keeping a second app for your lifting. Ours is one app.
Lab PDFs parse themselves. Drop in a Labcorp or Quest report and every marker is extracted and trended — no photographing, no typing.
A screen big enough to think on. Nine draws and sixty markers is not a phone-sized problem.
Training load sits beside protocol response. Whether your squat stalled during an off-cycle is a question that needs both halves in one place.

Honestly, use both if you want

They're not mutually exclusive, and plenty of people will get the most from OptiPin for dose mechanics and us for training and labs. We'd rather say that than pretend there's only one answer. If you don't lift seriously, OptiPin is probably the better fit for you — and that's fine.

Free to use, no card needed.

Try it and see whether the training side earns its place.

Download free on iOS

Comparison based on OptiPin's publicly listed features as of August 2026. We've tried to be fair — if we've got something wrong about their app, email [email protected] and we'll correct it.

Hemingway Performance is an informational tracking tool, not medical advice.

Hemingway Performancevs OptiPin