# CTBIDS vs FlipStack AI

The clearest difference is in-app purchases: CTBIDS at none against FlipStack AI's 2. FlipStack AI's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FlipStack AI sells 2 in-app purchases, starting at $4.99 per month. CTBIDS asks for nothing beyond the download.

CTBIDS ships an update every 3 weeks, FlipStack AI every 6 days. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | CTBIDS | FlipStack AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (237 ratings)](https://appshunter.io/ios/app/ctbids/id6467594552/reviews)** | — |
| Number of ratings | **237** | — |
| Positive reviews | 6.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 49 MB | 72 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Caring Transitions, Inc](https://appshunter.io/developer/1208018507) | [chad vasquez](https://appshunter.io/developer/1896282895) |

## What reviewers say

### CTBIDS

[App page](https://appshunter.io/ios/app/ctbids/id6467594552)

Participate in online estate sale auctions with bidding starting at just $1. Discover unique items and everyday treasures from the comfort of your home. The app offers easy navigation, bid tracking, and favorite lists for a seamless auction experience.

**Highlights:** Bidding starts at $1, Bid from anywhere, Set maximum bids, Filter items by category and location, Track bidding status, Create favorites lists

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Smooth and efficient app
- 👍 Useful features like marking favorites
- 🔒 Secure login options

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🔍 Poor search functionality
- 💤 Sluggish performance
- 🤖 Unintuitive and confusing UI
- 🔋 High battery consumption

**Reported bugs**

- Login issues with Google/Apple accounts
- Inconsistent app behavior and crashes
- Incorrect or missing auction information
- Inability to access account and bidding history

**Requested features**

- Ability to view item photos without opening listing
- Improved navigation and back button functionality
- Real-time bid updates and notifications
- Filtering and sorting options for search
- Seamless integration with website and account management


### FlipStack AI

[App page](https://appshunter.io/ios/app/flipstack-ai/id6766422452)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | per month |
| FlipStack Pro — Yearly | $29.99 | per year |


## Frequently asked questions

### Is CTBIDS free?

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

### Is FlipStack AI free?

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

### Do CTBIDS or FlipStack AI have ads?

Neither CTBIDS nor FlipStack AI shows ads.

### Which is updated more often, CTBIDS or FlipStack AI?

CTBIDS ships an update every 3 weeks, and FlipStack AI every 6 days. Most recently, CTBIDS was updated on September 24, 2026 and FlipStack AI on September 10, 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.*