# Dig a Pig Too vs Parallel

The clearest difference is rating: Dig a Pig Too at 5.0 against Parallel's 4.5. Dig a Pig Too also leads on in-app purchases (none vs 4) and update cadence (every 4 days vs every 3 weeks). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Parallel sells 4 one-off in-app purchases. Dig a Pig Too asks for nothing beyond the download.

Dig a Pig Too holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Dig a Pig Too ships an update every 4 days, Parallel every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Dig a Pig Too | Parallel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dig-a-pig-too/id6767885090/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/parallel-history-timeline/id6772115245/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 5 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Alexander Knue](https://appshunter.io/developer/1896517402) | [Anatol Knotek](https://appshunter.io/developer/1895362751) |

## What reviewers say

### Dig a Pig Too

[App page](https://appshunter.io/ios/app/dig-a-pig-too/id6767885090)

This app aids biology students at Columbia University in preparing for fetal pig anatomy lab practicals. It features a comprehensive atlas with labeled structures, interactive quizzes, and exam simulations based on the BIOL2501 curriculum. Study smarter with prioritized content and detailed system tracing.

**Highlights:** 330+ labeled fetal pig structures, Real Exam mode with timed stations, Circulatory system tracing, Timed multiple-choice quizzes, Fill-in-the-blank practice, Full-text search, Community-contributed dissection photos

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

**In-app purchases:** none


### Parallel

[App page](https://appshunter.io/ios/app/parallel-history-timeline/id6772115245)

Explore historical connections by viewing multiple timelines simultaneously. Discover who lived at the same time as historical figures and events. Create custom collections or use curated ones to delve into specific eras and topics.

**Highlights:** View multiple historical timelines, Discover contemporaries at a glance, Access concise biographies with Wikipedia links, Create custom history collections, Offline functionality, Private and no tracking

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Painters & Sculptors XL | $1.99 | one-time |
| Buildings XL | $1.99 | one-time |
| Science & Technology XL | $1.99 | one-time |
| Parallel Pro | $3.99 | one-time |


## Frequently asked questions

### Is Dig a Pig Too free?

Dig a Pig Too is free to download, with no in-app purchases.

### Is Parallel free?

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

### Which has better reviews, Dig a Pig Too or Parallel?

Dig a Pig Too is rated higher. Dig a Pig Too averages 5.0 out of 5 from 2 ratings, while Parallel averages 4.5 from 2 ratings.

### Do Dig a Pig Too or Parallel have ads?

Neither Dig a Pig Too nor Parallel shows ads.

### Which is updated more often, Dig a Pig Too or Parallel?

Dig a Pig Too ships an update every 4 days, and Parallel every 3 weeks. Most recently, Dig a Pig Too was updated on October 31, 2026 and Parallel on October 31, 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.*