# QuantaTime vs Present Past

The clearest difference is in-app purchases: Present Past at none against QuantaTime's 4. Present Past also leads on update cadence (every 4 days vs every 11 months) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. QuantaTime sells 4 in-app purchases, starting at $1.99 per month. Present Past asks for nothing beyond the download.

QuantaTime ships an update every 11 months, Present Past every 4 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | QuantaTime | Present Past |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 days** |
| Size | 18 MB | 33 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Talon Strike Software](https://appshunter.io/developer/558604945) | [SeungEun Lee](https://appshunter.io/developer/1884158333) |

## What reviewers say

### QuantaTime

[App page](https://appshunter.io/ios/app/quantatime/id6742660826)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Quarterly | $2.99 | per 3 months |
| Yearly | $5.99 | per year |
| Lifetime | $12.99 | one-time |


### Present Past

[App page](https://appshunter.io/ios/app/present-past/id6761558182)

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

**In-app purchases:** none


## Frequently asked questions

### Is QuantaTime free?

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

### Is Present Past free?

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

### Do QuantaTime or Present Past have ads?

Neither QuantaTime nor Present Past shows ads.

### Which is updated more often, QuantaTime or Present Past?

QuantaTime ships an update every 11 months, and Present Past every 4 days. Most recently, QuantaTime was updated on October 30, 2026 and Present Past on November 9, 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.*