# AnchorChainCalculator vs MIMI Private Timer

The clearest difference is price: MIMI Private Timer at Free against AnchorChainCalculator's $12.99. MIMI Private Timer also leads on update cadence (every 6 days vs every 3 weeks). AnchorChainCalculator's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads there is nothing between them.

MIMI Private Timer is free to download; AnchorChainCalculator costs $12.99 up front. MIMI Private Timer sells 2 one-off in-app purchases. AnchorChainCalculator asks for nothing beyond the download.

AnchorChainCalculator ships an update every 3 weeks, MIMI Private Timer every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | AnchorChainCalculator | MIMI Private Timer |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/anchorchaincalculator/id1533741243/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Paid | — |
| Size | 12 MB | 10 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mathias Wagner](https://appshunter.io/developer/1533741245) | [Ryoma Inoue](https://appshunter.io/developer/1862345588) |

## What reviewers say

### AnchorChainCalculator

[App page](https://appshunter.io/ios/app/anchorchaincalculator/id1533741243)

Calculate the optimal amount of anchor chain or rope for secure anchoring based on vessel characteristics and sea conditions. Provides detailed load calculations and accounts for dynamic effects like swell and gusts. Supports both metric and imperial units, with options for chain-only or mixed rope/chain setups.

**Highlights:** Physics-based anchoring calculations, Customizable vessel and sea conditions, Chain-only or mixed rope/chain support, Load and swell absorption analysis, Metric and imperial unit support, Multiple vessel configuration storage, Basic and Expert modes

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

**In-app purchases:** none


### MIMI Private Timer

[App page](https://appshunter.io/ios/app/mimi-private-timer/id6760279762)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Buy me a coffee | $2.99 | one-time |


## Frequently asked questions

### Is AnchorChainCalculator free?

AnchorChainCalculator costs $12.99, with no in-app purchases.

### Is MIMI Private Timer free?

MIMI Private Timer is free to download, with in-app purchases available.

### Do AnchorChainCalculator or MIMI Private Timer have ads?

Neither AnchorChainCalculator nor MIMI Private Timer shows ads.

### Which is updated more often, AnchorChainCalculator or MIMI Private Timer?

AnchorChainCalculator ships an update every 3 weeks, and MIMI Private Timer every 6 days. Most recently, AnchorChainCalculator was updated on October 24, 2026 and MIMI Private Timer on October 24, 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.*