# StrengthTempo vs Marduk.ai

The clearest difference is in-app purchases: Marduk.ai at none against StrengthTempo's 4. Marduk.ai also leads on update cadence (weekly vs monthly) and iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. StrengthTempo sells 4 in-app purchases, starting at $3.99 per month. Marduk.ai asks for nothing beyond the download.

StrengthTempo ships an update monthly, Marduk.ai weekly. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | StrengthTempo | Marduk.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 16 MB | 51 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [小雨 李](https://appshunter.io/developer/1691868017) | [Marduk.ai Sp. z o.o.](https://appshunter.io/developer/1868078976) |

## What reviewers say

### StrengthTempo

[App page](https://appshunter.io/ios/app/strengthtempo-rep-timer/id6743028089)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StrengthTempo Pro Monthly | $3.99 | per month |
| StrengthTempo Pro Quarterly | $9.99 | per 3 months |
| StrengthTempo Pro Annual | $29.99 | per year |
| StrengthTempo Pro Lifetime | $79.99 | one-time |


### Marduk.ai

[App page](https://appshunter.io/ios/app/mardukai/id6757655253)

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

**In-app purchases:** none


## Frequently asked questions

### Is StrengthTempo free?

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

### Is Marduk.ai free?

Marduk.ai is free to download, with no in-app purchases.

### Do StrengthTempo or Marduk.ai have ads?

Neither StrengthTempo nor Marduk.ai shows ads.

### Which is updated more often, StrengthTempo or Marduk.ai?

StrengthTempo ships an update monthly, and Marduk.ai weekly. Most recently, StrengthTempo was updated on October 25, 2026 and Marduk.ai on October 10, 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.*