Zots vs Kalk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zots
Track daily habits, reminders, and milestones with a minimalist dot interface. Collaborate with family or roommates in shared spaces, visualizing progress and tasks at a glance. Offers multiple view modes and offline functionality.
- Habit tracking
- Reminder logging
- Milestone progress
- Family collaboration
- Multiple view modes
- Offline functionality
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Life in dots. Tracked together. How many coffees this week? Did someone take out the trash? Track everyday habits and reminders with your family through beautiful, minimalist dots. See who does what at a glance. No ads disrupting your flow. TRACK THREE WAYS Habits: Daily actions like water intake, exercise, household chores. Tap to log, see patterns emerge across 60 days. Reminders: Recurring tasks that need completion. Bills, medications, maintenance. Set flexible schedules, never miss what matters. Progress: Lifetime milestones. Books read, movies watched, workouts completed. Watch your achievements accumulate. COLLABORATION THAT ACTUALLY WORKS Share spaces with family or roommates. Dots are colored by who performed each action. No arguments about who did the dishes. Real-time sync keeps everyone aligned. VISUALIZE YOUR WAY Five view modes: List, Grid, Timeline, Dot Matrix, Heatmap. Expand any item to see detailed graphs and sparklines. SUBSCRIPTION INFORMATION Zots Premium (monthly 3.99 USD, yearly 19.99 USD) and Zots Gold (yearly 39.99 USD) are auto-renewable subscriptions. Payment is charged to your Apple ID at confirmation of purchase. A subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. You can manage or cancel anytime in your Apple ID Account Settings. Terms of Use: https://zovia.studio/terms Privacy Policy: https://zovia.studio/privacy/zots
Kalk
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Kalk is a calculator you write in like a notes app. Type words and numbers together, the way you'd jot something down: "Rent 1 200 + utilities 180", "Coffee 4.50 × 20 workdays", "100 EUR in USD". Every line with a calculation shows its answer on the right, as you type. No keypad, no equals button, no lost history: the whole calculation stays readable and editable. WRITE THE WAY YOU THINK • Words around numbers are simply ignored, so notes and math share a line • Headings with #, comments with // • Big numbers the easy way: 1 250 000, 45k, 2.5M, 1bn • Decimal point or comma, whichever you're used to MATH, PERCENT, UNITS • Brackets, powers, negative numbers • Percentages the way people say them: 100 + 15%, 20% of 80, Price − 10% • Convert length, weight, volume, speed, temperature, time and data: 6 ft in cm, 180 lb in kg, 38 °C in °F CURRENCIES AND CRYPTO • Live exchange rates for world currencies • Bitcoin, Ethereum, Solana, stablecoins and more • Mix currencies in one line: £80 + €50, (0.1 BTC + 2 ETH) in USD TOTALS THAT ADD THEMSELVES • Write Total, sum or avg under a list to add it up • Sections end at a blank line or heading, so one sheet can hold many lists • The bottom bar keeps a running grand total • Name values and reuse them: Rate: $85, Rate × 37.5 ON ALL YOUR DEVICES • iPhone, iPad and Mac • Sheets sync through your own iCloud • Edit offline on several devices; Kalk merges the changes when they reconnect AND MORE • Lock private sheets with Face ID, Touch ID or your passcode • Share a sheet as text, PDF or image • Pin, sort and duplicate sheets • Dark, light or follow the system • Built-in cheatsheets with examples of everything Kalk understands Great for budgets, trip planning, splitting bills, invoices, renovation estimates, recipes, shopping lists, and any time you'd otherwise reach for a calculator and a notepad at once. PRIVACY Kalk collects nothing. No accounts, no ads, no tracking. Your sheets stay on your devices and in your own iCloud.
Screenshots
Verdict
The clearest difference is in-app purchases: Kalk at none against Zots's 5. On price, ads, device support and iOS requirement 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. Zots sells 5 in-app purchases, starting at $3.99 per month. Kalk asks for nothing beyond the download.
| Parameter | Zots | Kalk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 41 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Zovia Studio LLC | Dmytro Shcherbyna |
In-app purchases
Zots
- Premium Monthly$3.991 Month
- Premium Yearly$19.991 Year
- Gold Yearly$39.991 Year
- Premium$2.99
- Gold$9.99
Kalk
No in-app purchases









