Harp Strings vs iTongue
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harp Strings
Adjust audio output for optimal speaker and room acoustics. Offers advanced tone controls for fine-tuning, a mute switch, and the ability to edit amplifier names. Tailor your sound experience with precision.
- Tone controls for speaker and room matching
- Advanced tone tuning
- Mute switch
- Amplifier name editor
Read full descriptionHide full description
This app provides tone controls to adjust the H1 for an optimum match with your speakers and the room. It also provides advanced tone controls to further tune the H1. Other features include a mute switch and an amplifier name editor.
iTongue
Analyze your tongue's appearance by uploading images. Receive a classification result based on the visual data provided. This tool offers a unique way to understand tongue characteristics.
- Tongue image upload
- Classification results
- User-friendly interface
- Health insights
Read full descriptionHide full description
This is a tongue classification tool. Users can upload their tongue images to get the classification result.
Screenshots
Verdict
The clearest difference is rating: Harp Strings at 5.0 against iTongue's 3.7. Harp Strings also leads on update cadence (every 8 days vs every 28 months) and iOS requirement (9.0 vs 17.0). iTongue's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Harp Strings holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Harp Strings ships an update every 8 days, iTongue every 28 months. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.
| Parameter | Harp Strings | iTongue |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.7 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 8 days — better | Every 28 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Bitwise Systems Inc | JIACHENG XIE |
Customer experience
Harp Strings
iTongue
In-app purchases
Harp Strings
No in-app purchases
iTongue
No in-app purchases
