# GainFrame vs Specimen

The clearest difference is rating: Specimen at 5.0 against GainFrame's 3.7. GainFrame's advantage is ads (none vs shown) and ratings volume (3 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. GainFrame sells 4 in-app purchases, starting at $0.99 per month and Specimen sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Specimen holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

GainFrame ships an update weekly, Specimen every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GainFrame | Specimen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/gainframe/id6759264984/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/specimen-physique-tracker/id6761397115/reviews)** |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Freemium | Free with in-app purchases |
| Size | 13 MB | 113 MB |
| Requires iOS | **26.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [EVAN HUNTER ALDRICH](https://appshunter.io/developer/1877729006) | [Matthew Fierro](https://appshunter.io/developer/1889359312) |

## What reviewers say

### GainFrame

[App page](https://appshunter.io/ios/app/gainframe/id6759264984)

Visualize your fitness progress with side-by-side photo comparisons. Easily track muscle growth and body composition changes over time. Create multiple collections to document gains in specific muscle groups.

**Highlights:** Side-by-side progress photo comparisons, Background removal from photos, Fine-tuning photo alignment, Visual timeline of fitness journey, Track muscle growth and body composition, Create multiple progress collections

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GainFrame Pro - Monthly | $0.99 | per month |
| GainFrame Pro - Annual | $6.99 | per year |
| GaineFrame Pro Monthly | $0.99 | one-time |
| Gainframe Pro Annual | $5.99 | one-time |


### Specimen

[App page](https://appshunter.io/ios/app/specimen-physique-tracker/id6761397115)

This app uses on-device AI and computer vision to analyze your physique from progress photos. It provides objective scores for muscle groups, estimates body fat, and offers personalized feedback to guide your training. Features include multi-angle scans and trend tracking.

**Highlights:** AI physique scoring for 6 muscle groups, Archetype-calibrated verdicts, Body fat % and FFMI estimates, 3-angle scan mode with auto-capture, Per-muscle coaching, Score trend charts and personal bests

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Specimen Pro | $9.99 | per month |
| Specimen Pro Annual | $59.99 | per year |
| Specimen Lifetime | $149.00 | one-time |


## Frequently asked questions

### Is GainFrame free?

GainFrame is free to download, with in-app purchases available.

### Is Specimen free?

Specimen is free to download, with in-app purchases available.

### Which has better reviews, GainFrame or Specimen?

Specimen is rated higher. GainFrame averages 3.7 out of 5 from 3 ratings, while Specimen averages 5.0 from 1 ratings.

### Do GainFrame or Specimen have ads?

Specimen shows ads; GainFrame does not.

### Which is updated more often, GainFrame or Specimen?

GainFrame ships an update weekly, and Specimen every 9 days. Most recently, GainFrame was updated on November 5, 2026 and Specimen on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*