Ideas Down Quickly vs Zem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ideas Down Quickly
Capture thoughts instantly with this frictionless note-taking app. Organize ideas into categories and find them quickly. Prioritizes privacy with offline functionality and on-device storage.
- Zero-friction capture
- Simple organization
- Easy browsing
- Offline functionality
- On-device storage
- Open source
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Ideas slipping away? Ideas Down Quickly is built for speed. Capture thoughts the moment they appear—no setup, no friction. Organize effortlessly, find ideas fast, and come back to them whenever inspiration strikes. Fast by Design - Zero-friction capture: Create or select a category and start recording instantly. - Simple organization: Keep ideas neatly categorized with minimal effort. - Easy browsing: Quickly scan and revisit past thoughts. Privacy First - Works offline: No internet required. - Optional iCloud backup and restore: Disabled by default. - On-device storage: Your ideas never leave your device. - Full data control: Backup and restore anytime from within the app. - Open source: Fully transparent—see exactly how everything works.
Zem
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zem is the to-do app for the days you can't. the hardest part of any task is starting. so every task in zem gets a 2-minute button — tap it and just begin. finishing is optional. that's the whole pitch. what's in the box: - a quiet today list, no streaks shouting at you - "split this task" — paste in the wall ("file taxes") and zem breaks it into the first three small steps you can actually start - a mascot that grows as you complete tasks (and forgives missed days) - a morning energy check-in that matches the day's tasks to where you're at - soft notifications, capped at three a day - iOS widget so today's next step is on your home screen - end-of-day swipe — see what you got done in 30 seconds things zem deliberately does NOT do: - shame you for missing a day - ship streak counters that reset on one bad week - ask for your contacts, calendar, or location - sell your data — we don't even collect task content privacy: - we never see what you write. tasks stay encrypted on your device and on our backend; we can't read them. - the only third party that ever touches a task title is openrouter (which forwards it to the underlying model), and only when you tap "split" (with caching so the same title never goes twice). - anonymous usage events are off by default in the EU. you choose. free 7-day trial, then a small monthly or yearly subscription. cancel any time from the App Store. — Subscription details (Zem Pro auto-renewing subscription): - Zem Pro Monthly — billed monthly at the price shown in-app, auto-renews each month until cancelled. - Zem Pro Yearly — billed yearly at the price shown in-app, auto-renews each year until cancelled. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings after purchase. Privacy Policy: https://tryzem.app/privacy Terms of Use (EULA): https://tryzem.app/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Ideas Down Quickly at none against Zem's 2. On price, update cadence, ads 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
Both are free to download. Zem sells 2 in-app purchases, starting at $4.99 per month. Ideas Down Quickly asks for nothing beyond the download.
Ideas Down Quickly ships an update every 11 days, Zem every 10 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Ideas Down Quickly | Zem |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 days | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Travis Bumgarner | Dominik Nowara |
In-app purchases
Ideas Down Quickly
No in-app purchases
Zem
- Monthly Pro$4.991 Month
- Pro Yearly7 Days trial$29.991 Year









