# FlipX vs Simple Invoice Maker

The clearest difference is in-app purchases: FlipX at none against Simple Invoice Maker's 7. FlipX also leads on review sentiment (94% vs 67%). Simple Invoice Maker's advantage is rating (4.9 vs 4.5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Simple Invoice Maker sells 7 in-app purchases, starting at $2.49 per 7 days. FlipX asks for nothing beyond the download.

Simple Invoice Maker holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 39 and 18 respectively. Written reviews complicate that: 94% of FlipX's written reviews are positive against 67% of Simple Invoice Maker's, so the app with the better star average is not the one people write more warmly about.

FlipX ships an update fortnightly, Simple Invoice Maker every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | FlipX | Simple Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (39 ratings)](https://appshunter.io/ios/app/flipx-prediction-markets/id6739733036/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/simple-invoice-maker-app/id6744615820/reviews)** |
| Number of ratings | **39** | 18 |
| Positive reviews | **94.3% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 112 MB | 45 MB |
| Requires iOS | **16.4** | 17.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Prosperah LLC](https://appshunter.io/developer/1779519268) | [Bivis](https://appshunter.io/developer/1124507805) |

## What reviewers say

### FlipX

[App page](https://appshunter.io/ios/app/flipx-prediction-markets/id6739733036)

Predict markets, trade crypto futures, and cash out to your bank all in one app. Access two leading prediction platforms, trade with high leverage, discover new meme coins, and manage your multi-chain portfolio securely.

**Highlights:** Predict sports, crypto, politics, and world events, Trade Hyperliquid perpetual futures with up to 50x leverage, Discover and buy new meme coins, Instant cashout to bank accounts, Multi-chain swaps across Solana, Base, and BSC, Self-custody MPC wallet

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

**In-app purchases:** none


### Simple Invoice Maker

[App page](https://appshunter.io/ios/app/simple-invoice-maker-app/id6744615820)

Effortlessly create and send professional invoices and estimates. Customize templates with your branding, track payments, and manage client details. Ideal for freelancers and small businesses seeking to streamline their billing process and get paid faster.

**Highlights:** Create invoices and estimates, Share via email, SMS, or print, Customize templates with logo/colors, Track payment status, Convert estimates to invoices, Manage multiple businesses, Offline access

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Weekly | $2.49 | per 7 days |
| Invoice Maker Monthly | $4.99 | per month |
| Invoice Maker Weekly | $4.99 | per 7 days |
| Invoice Maker Monthly | $8.99 | per month |
| Invoice Maker Annual | $49.99 | per year |
| Invoice Maker Annual | $79.99 | per year |
| Lifetime | $239.99 | one-time |


## Frequently asked questions

### Is FlipX free?

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

### Is Simple Invoice Maker free?

Simple Invoice Maker is free to download, with in-app purchases available.

### Which has better reviews, FlipX or Simple Invoice Maker?

Simple Invoice Maker is rated higher. FlipX averages 4.5 out of 5 from 39 ratings, while Simple Invoice Maker averages 4.9 from 18 ratings.

### Do FlipX or Simple Invoice Maker have ads?

Neither FlipX nor Simple Invoice Maker shows ads.

### Which is updated more often, FlipX or Simple Invoice Maker?

FlipX ships an update fortnightly, and Simple Invoice Maker every 3 weeks. Most recently, FlipX was updated on November 4, 2026 and Simple Invoice Maker on November 5, 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.*