# 33 AUCTION vs Immpression The clearest difference is update cadence: Immpression at every 5 weeks against 33 AUCTION's every 51 months. 33 AUCTION's advantage is iOS requirement (10.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them. Both are free to download. Neither carries in-app purchases, so what you see is what you pay. 33 AUCTION ships an update every 51 months, Immpression every 5 weeks. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively. ## The numbers | Metric | 33 AUCTION | Immpression | | --- | --- | --- | | Price | Free | Free | | In-app purchases | No | No | | Ads | No | No | | Update frequency | Every 51 months | **Every 5 weeks** | | Size | 109 MB | 82 MB | | Requires iOS | **10.0** | 16.4 | | Devices | **iPhone, iPad, iPod** | iPhone, iPad | | Age rating | 9+ | 4+ | | Developer | [33 Auction Pte. Ltd.](https://appshunter.io/developer/1552876975) | [Immpression LLC](https://appshunter.io/developer/1863972230) | ## What reviewers say ### 33 AUCTION [App page](https://appshunter.io/ios/app/33-auction/id1178991048) **Features:** macOS Compatibility **In-app purchases:** none ### Immpression [App page](https://appshunter.io/ios/app/immpression/id6756974604) **Features:** macOS Compatibility, Apple Wallet, Vision Pro support **In-app purchases:** none ## Frequently asked questions ### Is 33 AUCTION free? 33 AUCTION is free to download, with no in-app purchases. ### Is Immpression free? Immpression is free to download, with no in-app purchases. ### Do 33 AUCTION or Immpression have ads? Neither 33 AUCTION nor Immpression shows ads. ### Which is updated more often, 33 AUCTION or Immpression? 33 AUCTION ships an update every 51 months, and Immpression every 5 weeks. Most recently, 33 AUCTION was updated on October 5, 2026 and Immpression on September 26, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*