# PolyPod vs Doomsday Trainer

The clearest difference is review sentiment: PolyPod at 100% against Doomsday Trainer's 0%. PolyPod also leads on rating (4.8 vs 4.0). Doomsday Trainer's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 4 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. PolyPod sells 1 in-app purchase, starting at $1.99 per month. Doomsday Trainer asks for nothing beyond the download.

PolyPod holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 100% of PolyPod's written reviews are positive against 0% of Doomsday Trainer's.

PolyPod ships an update every 4 weeks, Doomsday Trainer every 5 days. Both last shipped on September 30, 2026.

## The numbers

| Metric | PolyPod | Doomsday Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/polypod/id6747622986/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/doomsday-trainer/id6760719687/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 130 MB | 15 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [scott saunders](https://appshunter.io/developer/1822064034) | [Maarten Claessen](https://appshunter.io/developer/1885901059) |

## What reviewers say

### PolyPod

[App page](https://appshunter.io/ios/app/polypod/id6747622986)

Learn languages by listening to podcasts with this app. It tracks your listening time, helps you build habits, and visualizes your progress. Features include adjustable playback speed, episode transcription, and achievement earning.

**Highlights:** Automatic listening time tracking, Daily listening goals, Progress visualization (streaks, hours), Podcast tagging and organization, Adjustable playback speed, On-device episode transcription, Achievement system for habit building

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | per month |


### Doomsday Trainer

[App page](https://appshunter.io/ios/app/doomsday-trainer/id6760719687)

Master the Doomsday Algorithm to instantly calculate the day of the week for any historical date. Engage in timed challenges, compete against others, and practice various calculation methods to improve your speed and accuracy.

**Highlights:** Doomsday Algorithm calculation, Timed streak challenges, 1-on-1 live battles, Multiple training methods, Targeted component drills, Step-by-step tutorial

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

**In-app purchases:** none


## Frequently asked questions

### Is PolyPod free?

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

### Is Doomsday Trainer free?

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

### Which has better reviews, PolyPod or Doomsday Trainer?

PolyPod is rated higher. PolyPod averages 4.8 out of 5 from 5 ratings, while Doomsday Trainer averages 4.0 from 2 ratings.

### Do PolyPod or Doomsday Trainer have ads?

Neither PolyPod nor Doomsday Trainer shows ads.

### Which is updated more often, PolyPod or Doomsday Trainer?

PolyPod ships an update every 4 weeks, and Doomsday Trainer every 5 days. Most recently, PolyPod was updated on September 30, 2026 and Doomsday Trainer on September 30, 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.*