Comparison

iKeep App vs Trajectory

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

Head to head
About

iKeep App

Securely store and organize your private notes and sensitive information on Apple devices. Features custom categories, quick search, and biometric locking for enhanced privacy. Syncs across devices via iCloud and offers quick access through widgets and extensions.

Highlights
  • Customizable categories with icons and colors
  • Fast search, favorites, and filters
  • Biometric lock (Face ID/Touch ID)
  • iCloud Sync for cross-device access
  • Home Screen widgets
  • iMessage extension
Features
Read full description

Keep the personal details you need closeβ€”without leaving them exposed. iKeep gives your private notes and sensitive information a secure, organized home on your Apple devices. ORGANIZE YOUR WAY β€’ Create custom categories with your own icons and colors β€’ Find anything fast with search, favorites, filters, and flexible sorting β€’ Copy or share a saved value when you need it BUILT AROUND PRIVACY β€’ Sensitive values are stored in Apple’s Keychain β€’ Lock iKeep with Face ID or Touch ID β€’ Hide values from view until you need them β€’ Turn on iCloud Sync when you want your data across devices WITH YOU ACROSS APPLE DEVICES β€’ Browse and copy from iPhone and iPad β€’ Access items from Apple Watch β€’ Use Home Screen widgets for quick access β€’ Share through the iMessage extension MADE FOR EVERY SCREEN iKeep 2.0 introduces a refreshed design, light and dark appearance options, and a dedicated iPad layout. Download iKeep and keep important personal information organized, protected, and ready when you need it.

About

Trajectory

Features
Read full description

Detects the trajectories of shapes moving along a parabolic path

Screenshots

iKeep App4 screens
Trajectory1 screens

Verdict

The call

The clearest difference is in-app purchases: Trajectory at none against iKeep App's 1. iKeep App's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. iKeep App sells 1 one-off in-app purchase. Trajectory asks for nothing beyond the download.

UpkeepUpdate frequency

iKeep App ships an update every 3 weeks, Trajectory fortnightly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard2 real differences Β· 6 level
iKeep App versus Trajectory: the parameters behind the verdict, then further details
ParameteriKeep AppTrajectory
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 3 weeksFortnightly β€” better
AdsYesYes
In-app purchasesYesNo β€” better
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPad, Apple Watch β€” betteriPhone
Requires iOS17.0 β€” better17.7.2
Further details β€” not scored
Size11 MB36 MB
Age rating4+4+
DeveloperBahadir SonmezHideaki Uchikoshi

In-app purchases

1 purchases

iKeep App

One-time1
  • Remove Ads$4.99
None

Trajectory

No in-app purchases

Questions

Is iKeep App free?
iKeep App is free to download, with in-app purchases available.
Is Trajectory free?
Trajectory is free to download, with no in-app purchases.
Do iKeep App or Trajectory have ads?
Both iKeep App and Trajectory show ads.
Which is updated more often, iKeep App or Trajectory?
iKeep App ships an update every 3 weeks, and Trajectory fortnightly. Most recently, iKeep App was updated on November 8, 2026 and Trajectory on October 30, 2026.

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