# OptiRep vs Mantis

The clearest difference is in-app purchases: Mantis at none against OptiRep's 2. Mantis also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OptiRep sells 2 in-app purchases, starting at $5.99 per 7 days. Mantis asks for nothing beyond the download.

OptiRep ships an update fortnightly, Mantis every 3 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | OptiRep | Mantis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 127 MB | 36 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Berat Yunus IPEK](https://appshunter.io/developer/1888584668) | [Mikhail Kurbatov](https://appshunter.io/developer/6812049805) |

## What reviewers say

### OptiRep

[App page](https://appshunter.io/ios/app/optirep-exercise-rep-counter/id6761279675)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OptiRep Premium | $5.99 | per 7 days |
| OptiRep Premium | $44.99 | per year |


### Mantis

[App page](https://appshunter.io/ios/app/mantis-smart-workouts/id6812049803)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is OptiRep free?

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

### Is Mantis free?

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

### Do OptiRep or Mantis have ads?

Neither OptiRep nor Mantis shows ads.

### Which is updated more often, OptiRep or Mantis?

OptiRep ships an update fortnightly, and Mantis every 3 days. Most recently, OptiRep was updated on November 5, 2026 and Mantis on November 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.*