# SeriesTrend vs Undertone

The clearest difference is in-app purchases: Undertone at none against SeriesTrend's 1. SeriesTrend's advantage is iOS requirement (16.4 vs 18.4). On price, ads and device support there is nothing between them.

Both are free to download. SeriesTrend sells 1 one-off in-app purchase. Undertone asks for nothing beyond the download.

## The numbers

| Metric | SeriesTrend | Undertone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/undertone-voice-journal/id6761442127/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | — |
| Monetization | — | Paid |
| Size | 87 MB | 1.4 GB |
| Requires iOS | **16.4** | 18.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Marcelo Caetano Oliveira Lopes](https://appshunter.io/developer/1818582645) | [Jessica Huang](https://appshunter.io/developer/1692895712) |

## What reviewers say

### SeriesTrend

[App page](https://appshunter.io/ios/app/seriestrend/id6746804882)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SeriesTrend Premium | $2.99 | one-time |


### Undertone

[App page](https://appshunter.io/ios/app/undertone-voice-journal/id6761442127)

Record your thoughts and have them transcribed locally on your device. This app prioritizes your privacy by processing all audio and text offline, ensuring your journal entries are never sent to a server. It offers a focused interface for recording, tagging, and searching your entries, with the ability to back up your entire journal.

**Highlights:** On-device transcription with Whisper AI, Offline functionality, works in airplane mode, No account or internet connection required, Tag and search journal entries locally, Replay recordings with waveform scrubber, Backup and restore entire journal archive

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

**In-app purchases:** none


## Frequently asked questions

### Is SeriesTrend free?

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

### Is Undertone free?

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

### Do SeriesTrend or Undertone have ads?

Neither SeriesTrend nor Undertone 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.*