# Amplitude Docs vs Text to Speech

The clearest difference is in-app purchases: Amplitude Docs at none against Text to Speech's 5. Amplitude Docs also leads on ads (none vs shown) and device support (3 vs 1). Text to Speech's advantage is update cadence (every 3 weeks vs every 2 months). On price there is nothing between them.

Both are free to download. Text to Speech sells 5 in-app purchases, starting at $4.99 per 7 days. Amplitude Docs asks for nothing beyond the download.

Amplitude Docs ships an update every 2 months, Text to Speech every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Amplitude Docs | Text to Speech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/text-to-speech-voiceflow-ai/id6596727811/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 46 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AMPLITUDE SAS](https://appshunter.io/developer/1135446138) | [Emre Acanal](https://appshunter.io/developer/1751749662) |

## What reviewers say

### Amplitude Docs

[App page](https://appshunter.io/ios/app/amplitude-docs/id1619266247)

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

**In-app purchases:** none


### Text to Speech

[App page](https://appshunter.io/ios/app/text-to-speech-voiceflow-ai/id6596727811)

Transform text into lifelike speech with realistic emotion, dialogue, and over 100 studio voices. This app also offers speech-to-text, document reading, voice isolation, and sound effect generation.

**Highlights:** Realistic speech with emotion tags, Multi-voice dialogue creation, 100+ studio voices in 30+ languages, Document reader for PDFs and scanned pages, Speech-to-text with speaker labeling, AI-powered voice isolation and sound effects, Built-in AI for brainstorming and scriptwriting

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $14.99 | per month |
| Small Token Pack | $3.99 | one-time |
| Medium Token Pack | $7.99 | one-time |
| Large Token Pack | $11.99 | one-time |


## Frequently asked questions

### Is Amplitude Docs free?

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

### Is Text to Speech free?

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

### Do Amplitude Docs or Text to Speech have ads?

Text to Speech shows ads; Amplitude Docs does not.

### Which is updated more often, Amplitude Docs or Text to Speech?

Amplitude Docs ships an update every 2 months, and Text to Speech every 3 weeks. Most recently, Amplitude Docs was updated on November 7, 2026 and Text to Speech on November 4, 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.*