Comparison

FlipX vs Simple Invoice Maker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FlipX

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
Read full description

Trade what happens next. FlipX is a mobile prediction-market app built for discovery, social insight and action. Explore supported markets across sports, crypto, politics, culture and global events. Follow market prices and public trader activity, trade the outcomes you believe in, and manage every position from entry through resolution. DISCOVER THE MARKETS THAT MATTER • Browse For You, Trending, Ending Today and New • Explore markets by topic and use prediction-focused search • Discover live and upcoming sports markets • Trade short-duration Up or Down markets on supported crypto assets • Review market rules, prices, liquidity and resolution details before trading FOLLOW TRADERS, NOT JUST TICKERS • See public trade activity in the FlipX Feed • Explore trader profiles and available trading statistics • Follow traders, share markets and join discussions • Tail a trade using current market pricing and your own order review • Manage Auto-copy separately where available TRADE AND MANAGE YOUR VIEW • Trade supported prediction-market outcomes • Place supported market or limit orders • Build eligible multi-pick Polymarket Combos • Track open positions, average entry, current value and P&L • Review orders, history, redemption and settlement • Manage watchlists across Markets, Sports and Up/Down SIMPLE FUNDING AND WITHDRAWALS • Buy supported assets with eligible provider payment methods • Transfer supported crypto into Predict Cash • Review the provider, network, quote, fees and limits before confirming • Track funding and withdrawal progress inside FlipX • Withdraw Predict Cash to your wallet • Cash out supported assets through eligible providers A WALLET BUILT INTO THE EXPERIENCE • MPC wallet security without requiring a traditional seed phrase • Face ID, fingerprint and PIN authentication where supported • View wallet addresses and manage Spot or legacy balances when needed • Review every transaction before signing Market availability, order types, funding routes, payment methods and cash-out options vary by provider, asset, network, country and region. Trading involves risk. Market prices can move quickly, and outcomes are not guaranteed. Download FlipX and trade what happens next.

About

Simple Invoice Maker

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
Read full description

Create invoices and estimates in minutes, with no paperwork and no spreadsheets. Perfect for contractors, freelancers and small business owners who want to avoid late payments and send professional, branded invoices that build trust anywhere. What You Can Do: - Create invoices and estimates - Choose from professional templates - Customize with your logo and colors - Share via email, SMS or print - Attach photos to invoices and estimates - Track payment status clearly - Convert estimates to invoices without retyping - Choose your currency for each invoice - Save clients and items with full details - View business reports - Show or hide item prices on the invoice - Add private notes visible only to you - Use the app online or offline - Manage multiple businesses in one app Why People Trust It: Thousands of professionals choose Invoice Maker because it keeps invoicing simple, fast and professional. Free to Try: Enjoy full access during your trial. Upgrade anytime to continue using all features. Subscription Details: - Unlimited access to all features after purchasing the subscription - Subscriptions are available as weekly, monthly, or annual plans. Prices may vary by location. - Payment is charged to your Apple ID account at confirmation. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Subscriptions and auto-renewal can be managed in your Apple ID settings. Support and Policies Email: support-invoice@bivis.app Privacy Policy: https://invoice.bivis.app/privacy Terms of Use: https://invoice.bivis.app/terms

Screenshots

FlipX4 screens
Simple Invoice Maker4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
FlipX versus Simple Invoice Maker: the parameters behind the verdict, then further details
ParameterFlipXSimple Invoice Maker
PriceFreeFree
Rating4.5 (39 ratings)4.9 (18 ratings) — better
Positive reviews94.3% of reviews — better66.7% of reviews
Number of ratings39 — better18
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.4
Further details — not scored
Size112 MB45 MB
Age rating17+4+
DeveloperProsperah LLCBivis

Customer experience

FlipX

All ratings37 ratings
Positive89.2%
Neutral0.0%
Negative10.8%
Written reviews35 reviews
Positive94.3%
Neutral0.0%
Negative5.7%

Simple Invoice Maker

All ratings17 ratings
Positive94.1%
Neutral5.9%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

FlipX

No in-app purchases

7 purchases

Simple Invoice Maker

Subscriptions6
  • Invoice Maker Weekly3 Days trial$2.497 Days
  • Invoice Maker Monthly3 Days trial$4.991 Month
  • Invoice Maker Weekly3 Days trial$4.997 Days
Show 3 more
  • Invoice Maker Monthly3 Days trial$8.991 Month
  • Invoice Maker Annual3 Days trial$49.991 Year
  • Invoice Maker Annual3 Days trial$79.991 Year
One-time1
  • Lifetime$239.99

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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