SumNote vs Gravity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SumNote
This app simplifies expense tracking by automatically calculating totals as you type, eliminating the need for spreadsheets. It's ideal for managing budgets, projects, or any list with associated costs, offering a distraction-free experience.
- Built-in calculator for automatic totaling
- Familiar note-taking interface
- Ideal for budgets and project costs
- Distraction-free design
- Lightweight and easy to use
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SumNote makes it easy to keep track of life’s running costs, without wrangling spreadsheets or switching between apps. Christmas shopping? Kitchen makeover? Holiday planning? If it has a price tag, drop it into a SumNote and watch the total update as you type. Why you’ll love SumNote: • Feels just like your regular notes app, because it basically is • Built-in calculator does the adding for you • Great for budgets, projects, lists, and anything with a cost • Free, lightweight, and pleasantly distraction-free From festive spending to everyday “how did that add up so fast?” moments, SumNote keeps everything clear, calm, and neatly summed.
Gravity
This app offers a streamlined note-taking experience by eliminating folders and tags, focusing on a single, continuous stream of thoughts. Capture ideas instantly and use simple gestures to manage your notes, prioritizing what matters most.
- Instant note capture
- Single stream organization
- Swipe gestures for actions
- Attention-based prioritization
- Private iCloud sync
- Lightweight prefixes for filtering
- Fast search functionality
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Gravity is a fast, private notes app with one stream, instant capture, and a simple rule: swipe to bump what matters back to the top. You open your notes app to jot down a quick idea. But first: which folder? What tags? Should you link it to something? By the time you've decided, the thought is gone. Gravity eliminates every barrier between your thoughts and the page. No folders. No tags. No complex systems to maintain. Just one continuous stream, and your attention decides what stays relevant. - Syncs privately via your personal iCloud account. No third-party servers. - No account required. No sign-up. No tracking. - One-time purchase. No subscription. No ads. HOW IT WORKS Append — Open the app and start typing. Your note saves automatically. No tapping "new note." No choosing a location. Just capture Review — Scroll through your stream. New notes live at the top. Older notes naturally drift down over time, like thoughts settling in your mind. Rescue — When something catches your attention, swipe right to bump it back to the top. Your attention becomes your organization system. Archive — When a note has served its purpose, swipe left. Done. FEATURES Quick Capture - Start typing the moment you open the app - Auto-save means you never lose a thought - Hit return twice to save and start fresh The Stream - One continuous timeline of all your notes - No folders, categories, or nested hierarchies - Scroll to review; swipe to act Bump to Top - Swipe right on any note to rescue it - Your attention naturally sorts what matters - No manual organization required Lightweight Prefixes - Type todo: or idea: or any prefix at the start of any note - Search by prefix to create instant filtered views - Color-coded highlighting makes prefixes pop Fast Search - Find notes instantly across thousands of entries - Partial-word matching catches what you're looking for - Built on a high-performance local database Quick Actions - Swipe left to reveal: archive, delete, share, copy - Every action is one gesture away - Undo protection for destructive actions Import and Export - Export all your notes anytime to a single json file - Import with validation and duplicate protection - Your data, your control DESIGNED FOR FOCUS - Warm, paper-like aesthetic - Satisfying haptics on every interaction - Fluid gestures that feel natural - Minimal setup - Nothing to learn WHO GRAVITY IS FOR Designed for plain-text note taking, quick ideas, and lightweight to-dos. For solo thinkers who want to capture first and organize never. For anyone who's felt the relief of simply writing something down without deciding where it goes. Not a second brain. Not a knowledge graph. Just your thoughts, in one stream. INSPIRED BY SIMPLICITY Gravity is built around Andrej Karpathy's append-and-review method for personal notes: keep one running stream, review it periodically, and let your attention decide what stays relevant. Most notes apps tolerate this workflow. Gravity is designed for it. ONE PRICE. YOURS FOREVER. Pay once. No subscription. No in-app purchases. No ads. Just a thoughtfully crafted notes app that respects your attention and your wallet. Stop organizing. Start thinking. Download Gravity and let your thoughts sink in.
Screenshots
Verdict
The clearest difference is price: SumNote at Free against Gravity's $9.99. SumNote also leads on update cadence (every 4 days vs every 2 weeks) and review sentiment (100% vs 92%). Gravity's advantage is rating (5.0 vs 4.8). On ratings volume, 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
SumNote is free to download; Gravity costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gravity holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews complicate that: 100% of SumNote's written reviews are positive against 92% of Gravity's, so the app with the better star average is not the one people write more warmly about.
SumNote ships an update every 4 days, Gravity every 2 weeks. The most recent releases landed on September 4, 2026 and September 14, 2026 respectively.
| Parameter | SumNote | Gravity |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.8 (6 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 91.7% of reviews |
| Number of ratings | 6 | 9 — better |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Max Brooks | Tristan Manchester |
Customer experience
SumNote
Gravity
In-app purchases
SumNote
No in-app purchases
Gravity
No in-app purchases








