# OTonline vs Tandli

The clearest difference is in-app purchases: OTonline at none against Tandli's 2. OTonline also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). Tandli's advantage is update cadence (every 3 weeks vs every 6 months). On price and ads there is nothing between them.

Both are free to download. Tandli sells 2 in-app purchases, starting at $7.99 per month. OTonline asks for nothing beyond the download.

OTonline ships an update every 6 months, Tandli every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | OTonline | Tandli |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 104 MB | 62 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | +4 |
| Developer | [neuroOT](https://appshunter.io/developer/1841346857) | [Collin Arumai Harinath Mendons Jeyaseelan](https://appshunter.io/developer/1623374986) |

## What reviewers say

### OTonline

[App page](https://appshunter.io/ios/app/otonline/id6752854989)

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

**In-app purchases:** none


### Tandli

[App page](https://appshunter.io/ios/app/tandli-visual-schedule/id6796813364)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $7.99 | per month |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is OTonline free?

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

### Is Tandli free?

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

### Do OTonline or Tandli have ads?

Neither OTonline nor Tandli shows ads.

### Which is updated more often, OTonline or Tandli?

OTonline ships an update every 6 months, and Tandli every 3 weeks. Most recently, OTonline was updated on October 25, 2026 and Tandli on October 25, 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.*