Simple Deadline Tracker vs Onit
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Simple Deadline Tracker
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Simple Deadline Tracker helps you stay on top of every deadline with live countdowns, smart reminders, and color-coded urgency levels. Key Features: - Live Countdown: See exactly how much time remains for every deadline. Color-coded urgency levels (green, yellow, red) update in real-time so you always know what needs attention. - Smart Reminders: Get notified before deadlines are due. Set custom reminder intervals so nothing catches you off guard. - Calendar View: Browse your deadlines on a monthly calendar. Quickly see which days have upcoming due dates at a glance. - Categories: Organize deadlines by category - work, school, personal, bills, and more. Filter and focus on what matters. - Recurring Deadlines: Set up monthly or weekly recurring deadlines that automatically renew. Perfect for bills, reports, and regular tasks. - Cloud Sync: Sign in to sync your deadlines across devices. Your data is always backed up and accessible. - Simple & Fast: No bloat, no complicated setup. Add a deadline in seconds and get back to what matters. Whether you are a student tracking assignment due dates, a professional managing project milestones, or anyone who needs to stay organized, Simple Deadline Tracker keeps you on schedule.
Onit
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Onit is a self-scheduling follow-up app. Tell it what matters โ "renegotiate insurance before March 15," "finish marketing content in 2 weeks," "renew domain in 6 weeks" โ and Onit follows up with you on the right schedule until it's done. Type it directly, forward any email to your @mail.getonit.dev alias, or DM the Onit Telegram bot. Onit extracts the deadline and the action-by date automatically, then nudges you persistently before the window closes โ so nothing gets buried. Think of it as a note to self that follows up for you. Works with: manual entry ยท forward-email alias (always on) ยท Telegram bot (always on) ยท Gmail read-only (beta add-on). WHAT ONIT FOLLOWS UP ON Insurance renewals. Software subscriptions (Notion, Adobe, Figma, JetBrains, AWS, Slack, GitHub, Linear). Streaming services (Netflix, Spotify, Disney+). Domain renewals (Namecheap, GoDaddy, Cloudflare). Tax obligations. Loan payments. Medical bills. Contract renewals with notice periods. Rent. Memberships. Dentist appointments. Parking permit expirations. Work follow-ups someone is waiting on. Anything with a deadline you cannot afford to miss. THE WINDOW YOU DID NOT KNOW YOU HAD An insurance renewal email arrives. The negotiation window closes thirty days before the due date. By the time the invoice lands, the leverage is already gone. Onit knows the window by category. Software subscriptions: 7 days. Domain renewals: 14 days. Insurance and contracts: 30 days. Appointments: enough lead time to reschedule. Onit fires before the window closes, not after. HOW CAPTURE WORKS Type it the way you would say it. "Finish marketing content in 2 weeks." "Pay rent on the 5th." "Follow up with the contractor in 10 days." Onit picks the deadline and the action-by date automatically โ no date picker, no setup. Forward any email to your personal @mail.getonit.dev alias. Onit extracts the obligation, the due date, and the action date from the message. Message the Onit Telegram bot the way you would message a person. Works from any device, any thread, instantly. Gmail read-only beta: connect your inbox and Onit watches for actionable messages in the background. (Capped beta โ limited spots available.) HOW SELF-SCHEDULING WORKS Every follow-up moves through five levels based on how far you are from the deadline. Quiet far out (bi-weekly), gentle as it approaches (weekly), persistent in the final stretch (every 3 days), urgent in the last days (daily), and overdue if you miss it. Quiet hours respected. Each nudge arrives with two choices: Done and Snooze. There is no Dismiss. That is the whole follow-up model โ Onit holds what you asked it to follow up on until you have actually handled it. PRIVACY Read-only and forward-only. Onit cannot send, modify, or delete your messages. Full message bodies are never stored โ only a 500-character snippet. OAuth tokens are encrypted at rest with AES-256-GCM. No analytics SDKs, no advertising IDs. One-tap disconnect deletes everything within 24 hours. We never train models on your messages. We never sell your data. Full policy: https://getonit.dev/privacy WHAT MAKES IT DIFFERENT Reminder apps wait for you to remember to create the reminder. Note-taking tools store but never resurface on a deadline. Subscription trackers tell you after the charge lands. Onit follows up with you โ on a schedule it picks based on the deadline and the type of obligation. Quiet when there is nothing to do. Loud when the window matters. Done or Snooze. Never Dismiss. PRICING Free includes a starter set of active follow-ups and all three input channels. Plus unlocks unlimited follow-ups, Gmail watch, and advanced nudge control. Cancel anytime. SUPPORT https://getonit.dev | thovandeth@gmail.com Built in Phnom Penh. For anyone who has paid too much because the email got buried. Read the full privacy policy: https://getonit.dev/privacy Read the full terms of service: https://getonit.dev/terms
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Verdict
The clearest difference is in-app purchases: Simple Deadline Tracker at none against Onit's 2. Onit's advantage is update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Onit sells 2 in-app purchases, starting at $5.99 per month. Simple Deadline Tracker asks for nothing beyond the download.
Simple Deadline Tracker ships an update fortnightly, Onit every 2 days. Both last shipped on October 25, 2026.
| Parameter | Simple Deadline Tracker | Onit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 | 16.4 |
| Further details โ not scored | ||
| Size | 82 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Flit Soft LLC | Lyhour Huy |
In-app purchases
Simple Deadline Tracker
No in-app purchases
Onit
- Monthly Plus$5.991 Month
- Annual Plus$59.991 Year
Questions
Is Simple Deadline Tracker free?
Is Onit free?
Do Simple Deadline Tracker or Onit have ads?
Which is updated more often, Simple Deadline Tracker or Onit?
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