Just Start vs Sidle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Just Start
This app helps individuals overcome task initiation challenges with ADHD-friendly focus sessions. It offers customizable timers, AI-powered task breakdown, virtual body doubling, and ambient soundscapes to enhance concentration and productivity.
- Customizable Pomodoro timers
- AI task breakdown
- Virtual body doubling
- Live Activities & Dynamic Island integration
- Lock screen widgets
- Ambient soundscapes
- Evolving focus garden
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The task is big. Your first step doesn’t have to be. Just Start helps you begin the task you keep putting off. Describe what feels hard to start, find one small action, and take it into a short focus session. MAKE THE FIRST STEP SMALLER Ask the app’s AI for a concrete first step for your own task. Still feels like too much? Ask for a smaller action. If AI is unavailable, you can write your own step or use the timer directly. START WITH TWO OR FIVE MINUTES Begin a short session without answering a survey. Pause when you need to. Longer focus and break presets are available when you want more time. SUPPORT WHEN YOU WANT IT Choose visual timers and ambient sounds. Pro adds more sound options, mixing, and optional AI check-ins. These check-ins are automated messages, not a live person working beside you. KEEP A LITTLE MOMENTUM See your focus history and progress. Return to a recent task or use a routine for something you do regularly. Optional account sync is available; an account is not required to start. START FREE The free app includes up to three focus sessions and three AI task requests per day, core progress tools, and three ambient sounds. Pro adds unlimited focus sessions and expanded support. AI requires internet access and is subject to service limits. PRIVACY The timer and local progress work offline. When you request AI help, your task and relevant context are sent through our server to our AI provider. Optional account sync sends account and synced app data to our cloud service. Read the privacy policy before sharing sensitive task information. APP LANGUAGES Choose in Settings: English, Español, Français, Deutsch, Português, Italiano, Nederlands, 日本語, Polski, 한국어, 繁體中文, العربية, Bahasa Indonesia, हिन्दी. PRO OPTIONS Monthly: $4.99 USD. Annual: $29.99 USD billed yearly. Existing lifetime purchases remain valid and can be restored. Local prices and terms are shown before purchase. Subscriptions renew automatically unless canceled in your App Store account settings. Payment is charged to your Apple ID account at confirmation of purchase. Just Start is a productivity tool, not a diagnosis or treatment for ADHD. Privacy: https://getjuststart.app/privacy Terms: https://getjuststart.app/terms
Sidle
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Starting is the hard part. Sidle starts with you. Sidle is an instant body-doubling companion for tasks that feel difficult to begin. No booking, camera or waiting room. Open the app when the moment to start appears, name the task, and Sid is already beside you. Type the thing you have been circling. Sid acknowledges it, asks for one physical first move, and then goes quiet while you work. You get a calm presence, a timer on your Lock Screen, and a session that still counts if you step away. FREE - Unlimited silent body-doubling sessions - Gentle, Steady, Quiet and Wry companion styles - Weekly on-device language variations - On-device Moments that keep your completed sessions together - No account or sign-up SIDLE PRO - A user-written “For next time” move, kept only on this phone and ready at the next start - An on-device mid-session hello with optional voice, plus an optional background notification - For adults who separately consent: a short optional AI co-start that asks you to name one physical first move - One visible, clearable note from the latest eligible AI session, kept with this device's anonymous profile BUILT WITHOUT SHAME MECHANICS - No daily chain to protect - No red badge or guilt copy - No mid-session upsell - No camera and no person waiting for you Step away and the elapsed time still counts. Return after a gap and Sid simply meets you where you are. The free loop works without an account. Sidle's provider-backed Pro AI is for adults 18 or older. Pro session text is sent only after adult confirmation and a clear AI-consent step so Sid can generate the co-start and, after an eligible session, replace the brief note kept for the next Pro start. Profiles and notes are device-scoped; Sidle does not provide cross-device memory sync. Sid is an AI companion, not a person or professional service, and Sidle is not a medical or therapeutic product. The App Store shows the price, billing period and any introductory offer available for your storefront and Apple Account before you confirm a purchase. Introductory offers appear only when Apple reports that you are eligible. Subscriptions auto-renew until cancelled in Apple Account settings. A one-time lifetime option may also be available. Optional provider-backed AI has fair-use limits; the paywall keeps those details in a separate disclosure and explains that on-device Pro continues if AI replies pause. Terms: https://sidle.keenshift.ai/terms Privacy: https://sidle.keenshift.ai/privacy Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Just Start at 15.0 against Sidle's 18.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Just Start sells 3 in-app purchases, starting at $4.99 per month and Sidle sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Just Start ships an update every 11 days, Sidle every 2 weeks. Both last shipped on October 25, 2026.
| Parameter | Just Start | Sidle |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 85 MB | 5 MB |
| Age rating | 4+ | 9+ |
| Developer | Estus Holdings LLC | Mitaanshu Agarwal |
In-app purchases
Just Start
- Just Start Pro Monthly$4.991 Month
- Just Start Pro Annual$29.991 Year
- Just Start Pro Lifetime$58.99
Sidle
- Sidle Pro Monthly7 Days trial$4.991 Month
- Sidle Pro Annual7 Days trial$34.991 Year
- Sidle Pro Lifetime$44.99









