# Back In The Day vs Second Nature

The clearest difference is price: Back In The Day at Free against Second Nature's $4.99. Back In The Day also leads on iOS requirement (13.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Back In The Day is free to download; Second Nature costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Back In The Day | Second Nature |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.4 (167 ratings)](https://appshunter.io/ios/app/back-in-the-day/id874456079/reviews)** | — |
| Number of ratings | **167** | — |
| Positive reviews | 73.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Free | — |
| Size | 28 MB | 4 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Schumacher](https://appshunter.io/developer/509865315) | [Jay Jennings](https://appshunter.io/developer/304059765) |

## What reviewers say

### Back In The Day

[App page](https://appshunter.io/ios/app/back-in-the-day/id874456079)

Calculate historical US inflation to understand the purchasing power of money across different decades. Easily convert past amounts to today's dollars or vice versa.

**Highlights:** US inflation calculation, Convert past to present value, Convert present to past value, Easy to use interface, Historical currency comparison

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Useful for understanding inflation
- 🚀 Quick and accurate results
- 🧠 Helps with budgeting
- 🧐 Clarifies historical prices

**What reviewers complain about**

- 🫨 UI shifts with keyboard
- ⏳ Doesn't go back far enough
- 🎚️ Font size issues
- 🚫 No longer works for some
- 💸 Only for USD

**Reported bugs**

- App does not work at all
- Sticks in info page on iPhone
- Can't display results
- Cuts off bottom, won't slide up
- No longer shows value today

**Requested features**

- Extend historical date range further back
- Landscape format option
- Always present keyboard
- Stable UI during conversions
- Support for larger font sizes


### Second Nature

[App page](https://appshunter.io/ios/app/second-nature/id6759306578)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back In The Day free?

Back In The Day is free to download, with no in-app purchases.

### Is Second Nature free?

Second Nature costs $4.99, with no in-app purchases.

### Do Back In The Day or Second Nature have ads?

Neither Back In The Day nor Second Nature 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.*