# Deduce vs Lost Bazaar

The clearest difference is in-app purchases: Lost Bazaar at none against Deduce's 10. Lost Bazaar also leads on update cadence (monthly vs every 8 months). Deduce's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price and ads there is nothing between them.

Both are free to download. Deduce sells 10 one-off in-app purchases. Lost Bazaar asks for nothing beyond the download.

Deduce ships an update every 8 months, Lost Bazaar monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Deduce | Lost Bazaar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deduce/id6745759798/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 53 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Mainwood](https://appshunter.io/developer/769006329) | [Volkan Alanya](https://appshunter.io/developer/6784566902) |

## What reviewers say

### Deduce

[App page](https://appshunter.io/ios/app/deduce/id6745759798)

Engage your mind with daily logic puzzles designed for all skill levels. Explore a vast archive of handcrafted challenges, with themed packs available for purchase. Enjoy a distraction-free experience focused purely on gameplay.

**Highlights:** Three daily puzzles (Easy, Medium, Hard), Instant access to over 100 puzzles, Themed puzzle packs (free and paid), In-app tutorial and strategy guide, Handcrafted puzzles with unique solutions, Ad-free, timer-free gameplay

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kids' Pack 1 | $0.99 | one-time |
| Hard Pack 1 | $0.99 | one-time |
| Just + and x 1 | $0.99 | one-time |
| Mixed Pack 1 | $0.99 | one-time |
| Just + and > 1 | $0.99 | one-time |
| Just x and > 1 | $0.99 | one-time |
| Medium Pack 1 | $0.99 | one-time |
| Easy Pack 1 | $0.99 | one-time |
| Access Archives | $1.99 | one-time |
| Extra Hard Pack 1 | $1.99 | one-time |


### Lost Bazaar

[App page](https://appshunter.io/ios/app/lost-bazaar-logic-puzzle/id6794865386)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deduce free?

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

### Is Lost Bazaar free?

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

### Do Deduce or Lost Bazaar have ads?

Neither Deduce nor Lost Bazaar shows ads.

### Which is updated more often, Deduce or Lost Bazaar?

Deduce ships an update every 8 months, and Lost Bazaar monthly. Most recently, Deduce was updated on October 24, 2026 and Lost Bazaar on October 25, 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.*