# WTFat vs Spotter

The clearest difference is price: Spotter at Free against WTFat's $1.99. Spotter also leads on update cadence (every 6 days vs every 4 months). WTFat's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Spotter is free to download; WTFat costs $1.99 up front. Spotter sells 1 one-off in-app purchase. WTFat asks for nothing beyond the download.

WTFat ships an update every 4 months, Spotter every 6 days. The most recent releases landed on May 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | WTFat | Spotter |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/spotter-gym-workout-tracker/id1575404760/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 14 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [yukihiro fujita](https://appshunter.io/developer/537078708) | [Tharuka Devendra](https://appshunter.io/developer/1575404762) |

## What reviewers say

### WTFat

[App page](https://appshunter.io/ios/app/wtfat-with-physics-engine/id596216671)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spotter

[App page](https://appshunter.io/ios/app/spotter-gym-workout-tracker/id1575404760)

This app helps you plan, track, and monitor your gym workouts. Gain insights into your progress with graphs and personal records to achieve your fitness goals. It offers an intuitive iOS-centric design for a seamless user experience.

**Highlights:** Workout planning, Exercise tracking (reps, weight), Progress monitoring with graphs, Personal records, Unlimited custom exercises (PRO), Unlimited workout history (PRO)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spotter PRO | $11.99 | one-time |


## Frequently asked questions

### Is WTFat free?

WTFat costs $1.99, with no in-app purchases.

### Is Spotter free?

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

### Do WTFat or Spotter have ads?

Neither WTFat nor Spotter shows ads.

### Which is updated more often, WTFat or Spotter?

WTFat ships an update every 4 months, and Spotter every 6 days. Most recently, WTFat was updated on May 16, 2026 and Spotter on October 18, 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.*