Comparison

FlipUp vs Peek

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

Head to head
About

FlipUp

Learn new material directly from your phone's lock screen using interactive widgets. Practice flashcards with simple swipes and track your mastery progress. AI can help generate focused study lists for efficient memorization.

Highlights
  • Lock screen flashcard widget
  • Interactive practice and answer reveal
  • AI-generated study lists
  • 5-dot mastery tracking system
  • Fast swipe memorization
Read full description

FlipUp lets you learn from your Lock Screen. The interactive widget brings your next card to the front—practice, reveal the answer, and track mastery without unlocking. Generate focused lists with AI, then memorize with fast swipes and a clear 5-dot system (0–5). At 5/5 the card becomes Learned.

About

Peek

Features
Read full description

Do you want to learn languages naturally by picking up new words and vocabulary through quick daily glances? Welcome to Peek – a passive language learning app that lets you learn new languages directly from your home screen. Peek is designed for language learners who want to learn new languages through natural repetition and simple exposure to vocabulary and phrases throughout the day. Instead of opening the app for lessons or studying flashcards manually, it helps you learn by showing automatic flashcards on your home screen widget throughout the day. Whether you are checking your phone during the day, working, or relaxing, Peek lets you improve your vocabulary recognition and language familiarity without pressure or complicated lessons. How to Use Peek? 1. Install the app 2. Add the widget on your home screen 3. Start learning from daily glances Just install Peek and add the smart widget to your home screen. The widget will automatically display flashcards with new words and phrases throughout the day so you can learn naturally while checking the time, notifications, or weather. You don’t need to open the app constantly. Every quick glance at your phone becomes a small learning moment. Key Features of Peek: Passive language learning: Learn languages naturally through auto-updating flashcards that appear on your home screen widget. Home screen widget learning: Smart flashcards appear directly on your home screen, turning everyday screen checks into learning opportunities. Create your own flashcards: Add your own words, phrases, and translations to personalize your learning experience and focus on what matters most to you. Natural daily exposure: Dozens of quick exposures each day help your brain remember vocabulary effortlessly over time. Smart vocabulary building: Common words and useful phrases repeat naturally to help improve memory and recognition. Simple and stress-free learning: No long sessions, no pressure, and no need to open the app constantly. So why wait? Install Peek, add the widget to your home screen, and turn your everyday screen time into a simple language learning habit. Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FlipUp3 screens
Peek4 screens

Verdict

The call

The clearest difference is in-app purchases: FlipUp at none against Peek's 2. FlipUp also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. Peek sells 2 in-app purchases, starting at $4.99 per month. FlipUp asks for nothing beyond the download.

UpkeepUpdate frequency

FlipUp ships an update every 4 days, Peek every 2 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
FlipUp versus Peek: the parameters behind the verdict, then further details
ParameterFlipUpPeek
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS17.6 — better18.2
Further details — not scored
Size14 MB59 MB
Age rating4+4+
DeveloperDexis DevelopmentMelvyn Hoarau

In-app purchases

None

FlipUp

No in-app purchases

2 purchases

Peek

Subscriptions2
  • Peek+ Monthly$4.991 Month
  • Peek+ Annual$29.991 Year

Questions

Is FlipUp free?
FlipUp is free to download, with no in-app purchases.
Is Peek free?
Peek is free to download, with in-app purchases available.
Do FlipUp or Peek have ads?
Neither FlipUp nor Peek shows ads.
Which is updated more often, FlipUp or Peek?
FlipUp ships an update every 4 days, and Peek every 2 weeks. Most recently, FlipUp was updated on October 7, 2026 and Peek on October 25, 2026.

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