# Caliper Calculator vs Subscription Manager

The clearest difference is in-app purchases: Caliper Calculator at none against Subscription Manager's 1. Caliper Calculator also leads on iOS requirement (8.0 vs 15.0). Subscription Manager's advantage is update cadence (daily vs every 9 days). On price, ads and device support there is nothing between them.

Both are free to download. Subscription Manager sells 1 one-off in-app purchase. Caliper Calculator asks for nothing beyond the download.

Caliper Calculator ships an update every 9 days, Subscription Manager daily. The most recent releases landed on October 18, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Caliper Calculator | Subscription Manager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Size | 12 MB | 14 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Pilhar](https://appshunter.io/developer/662990787) | [Necati Berk Ozcelik](https://appshunter.io/developer/1853573090) |

## What reviewers say

### Caliper Calculator

[App page](https://appshunter.io/ios/app/caliper-calculator/id1053038909)

**In-app purchases:** none


### Subscription Manager

[App page](https://appshunter.io/ios/app/subscription-manager-paylio/id6759074108)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium Package | $4.99 | one-time |


## Frequently asked questions

### Is Caliper Calculator free?

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

### Is Subscription Manager free?

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

### Do Caliper Calculator or Subscription Manager have ads?

Neither Caliper Calculator nor Subscription Manager shows ads.

### Which is updated more often, Caliper Calculator or Subscription Manager?

Caliper Calculator ships an update every 9 days, and Subscription Manager daily. Most recently, Caliper Calculator was updated on October 18, 2026 and Subscription Manager on October 28, 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.*