# SIS vs Lingua Logger

The clearest difference is in-app purchases: SIS at none against Lingua Logger's 2. SIS also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Lingua Logger sells 2 in-app purchases, starting at $1.99 per month. SIS asks for nothing beyond the download.

SIS ships an update every 3 weeks, Lingua Logger every 2 weeks. Both last shipped on October 1, 2026.

## The numbers

| Metric | SIS | Lingua Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/lingua-logger-study-tracker/id6745210241/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 57 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YAYASAN PENDIDIKAN ASIAN PASIFIK](https://appshunter.io/developer/1811065861) | [SWOL LLC (USA)](https://appshunter.io/developer/1601731157) |

## What reviewers say

### SIS

[App page](https://appshunter.io/ios/app/sis-connect/id6745161349)

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

**In-app purchases:** none


### Lingua Logger

[App page](https://appshunter.io/ios/app/lingua-logger-study-tracker/id6745210241)

This app helps you track your language learning progress with detailed logging and visualization tools. Set goals, maintain streaks, and gain insights into your study habits across over 60 languages. Sync your data across devices and export your logs for further analysis.

**Highlights:** Log study time for any language activity, Visualize progress with charts and graphs, Set daily, weekly, or monthly study goals, Maintain daily study streaks, Support for over 60 languages, Export study logs as CSV, Cross-device synchronization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lingua Logger Premium Monthly | $1.99 | per month |
| Lingua Logger Premium Yearly | $14.99 | per year |


## Frequently asked questions

### Is SIS free?

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

### Is Lingua Logger free?

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

### Do SIS or Lingua Logger have ads?

Lingua Logger shows ads; SIS does not.

### Which is updated more often, SIS or Lingua Logger?

SIS ships an update every 3 weeks, and Lingua Logger every 2 weeks. Most recently, SIS was updated on October 1, 2026 and Lingua Logger on October 1, 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.*