# Singalong Solfege vs IDOUDO

Singalong Solfege and IDOUDO are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Singalong Solfege sells 5 in-app purchases, starting at $4.99 per month and IDOUDO sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Singalong Solfege | IDOUDO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (29 ratings)](https://appshunter.io/ios/app/singalong-solfege/id1474769398/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Freemium | — |
| Size | 314 MB | 2 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YASUHIRO SEKINE](https://appshunter.io/developer/1438005943) | [Kosuke Mawatari](https://appshunter.io/developer/1489564137) |

## What reviewers say

### Singalong Solfege

[App page](https://appshunter.io/ios/app/singalong-solfege/id1474769398)

Enhance your musical abilities with this comprehensive ear training and sight-singing application. Practice pitch accuracy, rhythm, and music reading with a vast library of melodies and instrumental accompaniment.

**Highlights:** Sight-singing and instrumental reading training, Guide vocals and piano accompaniment, Over 290 curated melodies, Support for SATB voices, Transposing instrument support, Printable PDF sheet music (premium)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Solfege Yearly Subscription | $49.99 | per year |
| Enable Slow Tempo | $0.99 | one-time |
| Unlock Melodies | $5.99 | one-time |
| Saving printable pdfs | $11.99 | one-time |


### IDOUDO

[App page](https://appshunter.io/ios/app/idoudo-movable-do-solfege/id6804583806)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Keys: 1 Note | $1.99 | one-time |
| Unlock All Keys: 2 Notes | $1.99 | one-time |
| Unlock All Keys: 1 Triad | $1.99 | one-time |
| Unlock Keys: 1 Seventh Chord | $1.99 | one-time |


## Frequently asked questions

### Is Singalong Solfege free?

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

### Is IDOUDO free?

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

### Do Singalong Solfege or IDOUDO have ads?

Neither Singalong Solfege nor IDOUDO shows ads.

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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.*