# TimerFlex vs Fitness Secrets

The clearest difference is in-app purchases: Fitness Secrets at none against TimerFlex's 7. Fitness Secrets also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.0). TimerFlex's advantage is update cadence (weekly vs fortnightly). On price and device support there is nothing between them.

Both are free to download. TimerFlex sells 7 in-app purchases, starting at $1.49 per 7 days. Fitness Secrets asks for nothing beyond the download.

TimerFlex ships an update weekly, Fitness Secrets fortnightly. The most recent releases landed on September 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | TimerFlex | Fitness Secrets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/timerflex-wod-interval-timer/id6738749653/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 65 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Plainworks Teknoloji Limited Sirketi](https://appshunter.io/developer/1782187835) | [Codefish SAL](https://appshunter.io/developer/1106508165) |

## What reviewers say

### TimerFlex

[App page](https://appshunter.io/ios/app/timerflex-wod-interval-timer/id6738749653)

This app uses AI to instantly create custom workout timers from whiteboard photos or text descriptions. It offers various pre-built formats, real-time heart rate tracking, and detailed workout history. Advanced features like Apple Watch sync and unlimited AI generation are available with a subscription.

**Highlights:** AI workout generation from photos/text, Apple Watch sync with haptic cues, Real-time heart rate and calorie tracking, 5 purpose-built workout formats (For Time, AMRAP, EMOM, Tabata, Custom), 1RM calculator, Voice coach and audio cues, Workout history and monthly stats

**Features:** Apple Watch app

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $1.49 | per 7 days |
| TimerFlex Monthly | $3.49 | per month |
| 3 Months subscription | $8.49 | per 3 months |
| TimerFlex Annual Offer | $12.99 | per year |
| TimerFlex Annual | $24.99 | per year |
| Ad-Free | $0.99 | one-time |
| TimerFlex Lifetime | $34.99 | one-time |


### Fitness Secrets

[App page](https://appshunter.io/ios/app/fitness-secrets/id6762191546)

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

**In-app purchases:** none


## Frequently asked questions

### Is TimerFlex free?

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

### Is Fitness Secrets free?

Fitness Secrets is free to download, with no in-app purchases.

### Do TimerFlex or Fitness Secrets have ads?

TimerFlex shows ads; Fitness Secrets does not.

### Which is updated more often, TimerFlex or Fitness Secrets?

TimerFlex ships an update weekly, and Fitness Secrets fortnightly. Most recently, TimerFlex was updated on September 21, 2026 and Fitness Secrets on October 3, 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.*