# OPINDEX vs Loopin

The clearest difference is in-app purchases: OPINDEX at none against Loopin's 3. OPINDEX also leads on ads (none vs shown). Loopin's advantage is update cadence (every 3 days vs fortnightly) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Loopin sells 3 in-app purchases, starting at $1.29 per month. OPINDEX asks for nothing beyond the download.

OPINDEX ships an update fortnightly, Loopin every 3 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OPINDEX | Loopin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 51 MB | 48 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MONOLITH LABS LTD](https://appshunter.io/developer/1896337556) | [ATHENE GROUP LTD](https://appshunter.io/developer/1706489025) |

## What reviewers say

### OPINDEX

[App page](https://appshunter.io/ios/app/opindex/id6755972222)

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

**In-app purchases:** none


### Loopin

[App page](https://appshunter.io/ios/app/loopin-habit-management/id6769736490)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-month VIP package | $1.29 | per month |
| 3-month VIP package | $2.99 | per 3 months |
| 6-month VIP package | $4.99 | per 6 months |


## Frequently asked questions

### Is OPINDEX free?

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

### Is Loopin free?

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

### Do OPINDEX or Loopin have ads?

Loopin shows ads; OPINDEX does not.

### Which is updated more often, OPINDEX or Loopin?

OPINDEX ships an update fortnightly, and Loopin every 3 days. Most recently, OPINDEX was updated on November 9, 2026 and Loopin on October 31, 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.*