Kontrol vs Defter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kontrol
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Keep every subscription in check, without handing over your bank details. Kontrol shows all your subscriptions at a glance: what they cost, when they are due, and how much you spend on them in a year. Unlike apps that read your bank account, Kontrol keeps your data on your device. PRIVACY FIRST • No bank connection • No account to create • Your data stays on your device • Works offline too EVERY SUBSCRIPTION AT A GLANCE • Streaming, music, gym, phone plan and the rest, in one place • A calendar of every payment, day by day • Monthly and yearly cost, always in view • Categories to sort your fixed expenses NEVER BILLED BY SURPRISE • A reminder before each renewal, at the time you choose • Pause a subscription, or follow the steps to cancel it • Added in one tap: popular services like Netflix, Spotify, Disney+, YouTube Premium or ChatGPT are already in the list CLEAR AND SIMPLE • A clean design, with no long setup • Light and dark mode • Local reminders, right on your iPhone PERFECT FOR anyone who wants to keep their spending in check without giving an app their bank login. WHY KONTROL? • No account, no bank connection • Your data stays yours • You see what your subscriptions really cost per year • A reminder before it gets expensive Free: 7 subscriptions | Pro: unlimited, iCloud Sync, custom categories, CSV export Stop paying for subscriptions you forgot about. Kontrol puts your privacy first. Privacy Policy: https://maceobasse.com/kontrol/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Defter
Manage your finances with a beautiful, on-device ledger. Track cards, accounts, and rewards, with optional bank connections for automatic updates. Offers insights into cash flow and net worth, with a focus on privacy.
- Manual card and account tracking
- Apple Card, Cash & Savings sync
- Best-card picker
- Custom reward rules and benefits
- Statement cycles and payment reminders
- Cash flow and net worth history
- On-device AI assistant
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**Defter** (Turkish for "notebook") keeps your financial life on one calm, beautiful page — and opens like one. **Free, forever:** • Track cards and accounts manually — balances, statements, due dates • Apple Card, Apple Cash & Savings sync, fully on-device • Best-card picker: know which card earns the most before you swipe • Custom reward rules + benefits — tiered earn rates, sign-up bonuses, and perks like companion fares, tracked toward their spend thresholds • Favorite, reorder, and sort your cards however you think about them • Statement cycles, payment-due calendar, and smart reminders • Cash flow, net worth history, monthly forecast, missed-rewards insights • Separate ledgers for personal and business — switch with a tap • An on-device AI assistant that answers questions about *your* numbers • Home-screen widgets, Live Activities, and Spotlight search **Defter Pro** adds direct bank connections, so balances and transactions stream in on their own: • Plus — 3 banks • Pro — 10 banks • Ultra — unlimited banks One connection covers every card at that bank. Everything else in Defter stays free — Pro only meters direct connections. **Private by design.** Your transactions live on your iPhone, not our servers. Bank connections are read-only, powered by Teller. Location is used only when you tap "Best card here" and is immediately discarded. No ads, no tracking, no selling data — ever. Subscriptions renew automatically until cancelled in App Store settings. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Defter at none against Kontrol'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. Kontrol sells 2 in-app purchases, starting at $2.99 per 7 days. Defter asks for nothing beyond the download.
Kontrol ships an update every 2 months, Defter every 3 months. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.
| Parameter | Kontrol | Defter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 62 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Maceo Basse | Mediterra AI LLC |
In-app purchases
Kontrol
- Pro Weekly3 Days trial$2.997 Days
- Pro Lifetime$24.99
Defter
No in-app purchases









