Comparison

Scribble vs Otto

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

Head to head
About

Scribble

Features
Read full description

Scribble is the fastest way to get a thought out of your head. Most to-do apps make you wait — open the app, find the right list, tap a plus, then type. By then the thought's gone and you're back to scribbling on paper. Scribble opens straight to a blank line with the keyboard already up. Type it, hit return, and it's saved. That's the whole app. • Instant capture — the keyboard is up the moment you open it. No menus, no lists to scroll past. • Rapid-fire — hit return to save and keep going. Empty your head in one sitting. • Natural dates — type "call mom friday" or "renew passport in 2 weeks" and Scribble quietly files the date for you. • Hands-free — say "Hey Siri, Scribble" on your iPhone or Apple Watch and just speak. It lands in your list. • Calm by design — pen-blue ink on warm paper. Nothing to configure, nothing to nag you. No account. No sign-up. No ads. Your jots stay on your device. Scribble isn't trying to be your project manager. It's the napkin that's always in your pocket — just faster.

About

Otto

This minimalist, SMS-based agent helps manage screen time, track habits, and facilitate deep work. Simply text commands to lock distracting apps, log health data, or capture tasks, with instant execution and a visual dashboard.

Highlights
  • SMS-based commands
  • App locking for focus blocks
  • Apple Health integration
  • Habit tracking dashboard
  • Task capture and organization
  • Visual consistency tracker
Features
Read full description

Stop doomscrolling. Otto AI is a minimalist, SMS-based agent designed to manage your screen time, track your habits, and act as the command center for your deep work. Say goodbye to the friction of clicking through endless menus or dealing with overly-chatty AI therapists. With Otto, you just send a text, and the execution happens instantly. Text Otto to start a 2-hour study block, and your distracting apps are instantly locked. Text Otto your lunch calories or your 5-mile run, and the data is seamlessly written to Apple Health. HOW OTTO WORKS: The Drop & Go Workflow: Text Otto your command ("Start 45 min focus," "Logged 600 cals," "Remind me to draft the weekly update"). Silent Execution: Otto doesn't force a conversation. It confirms the action, locks your apps via Screen Time, and updates your dashboard instantly. The Command Center: Open the app to view your beautifully designed Bento Grid dashboard. See your daily focus metrics, Apple Health logs, and weekly consistency tracker in one glance. CORE FEATURES: App Shielding (Screen Time): Build intentional focus blocks. Select which apps distract you the most (like social media or games), and Otto will lock them out while your timer runs. Apple Health Integration: No more clunky food or workout logging. Just text your AI what you ate or how far you ran, and Otto syncs the data directly to your Health app. Smart Task Capture: Text a thought while walking, and Otto organizes it into your Focus Queue with an estimated time to complete. Visual Consistency Tracker: Watch your habits stack up on the GitHub-style heatmap grid. We prioritize weekly consistency over daily streaks so you never feel punished for taking a rest day. Soft Futurism UI: A warm, tactile, glassmorphic design that reduces eye strain and feels like a premium notebook rather than a harsh dashboard. PRIVACY FIRST: Otto is designed for adult self-regulation. Your Screen Time choices are processed securely on your device. We do not track, store, or transmit your app usage or browsing history. Stop managing your productivity apps and start executing. Meet Otto today.

Screenshots

Scribble2 screens
Otto4 screens

Verdict

The call

The clearest difference is update cadence: Otto at every 6 days against Scribble's fortnightly. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Scribble ships an update fortnightly, Otto every 6 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 8 level
Scribble versus Otto: the parameters behind the verdict, then further details
ParameterScribbleOtto
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyFortnightlyEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperROBERT DANIEL FORCERanveer Singh

In-app purchases

None

Scribble

No in-app purchases

None

Otto

No in-app purchases

Questions

Is Scribble free?
Scribble is free to download, with no in-app purchases.
Is Otto free?
Otto is free to download, with no in-app purchases.
Do Scribble or Otto have ads?
Neither Scribble nor Otto shows ads.
Which is updated more often, Scribble or Otto?
Scribble ships an update fortnightly, and Otto every 6 days. Most recently, Scribble was updated on October 25, 2026 and Otto on October 28, 2026.

Other comparisons