InstantLog vs TVM Financial Cal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InstantLog
Effortlessly capture important moments with a single tap. Log time for work, study, or routines, add notes, and organize entries with custom tags. Offers smart auto-fill and history viewing for easy management.
- One-tap time logging
- Custom time entry
- Quick tags for categorization
- Smart auto-fill notes
- History view with search and filters
- CSV export (Premium)
- Backup and restore (Premium)
- Home screen widgets
- Apple Watch support
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InstantLog helps you capture a moment before it slips away. Save the time with one tap, hold to record an idea, or mark where you parked. No InstantLog account is required. THREE QUICK ACTIONS • Stamp: save the current time, with an optional note and smart auto-fill. • Recording: press and hold to create a stamp and record audio. Release to save, or slide up to cancel only the audio. • Parking: save a parking spot, then find your car with a map, distance, parking details, and Apple Maps walking directions. ON YOUR WRIST Record directly on Apple Watch. Stamps and recordings are saved locally when the phone is unavailable and sync to your paired iPhone later. Check pending/synced status and listen to your Watch recordings. MAKE IT YOURS Set iPhone and Apple Watch button positions independently from iPhone Settings. Add text or more recordings to existing stamps. Use quick tags, smart suggestions, time-based rules, history search and filters, flexible time entry, and Home Screen widgets. FREE CORE FEATURES Recording, playback, Watch audio sync, button customization, and basic parking save/retrieval are free. Your stamps, notes, and recordings are stored on device; Watch recordings transfer to the paired iPhone. Transcription and translation are not included. PREMIUM — ONE-TIME PURCHASE Add GPS to regular iPhone stamps, unlock the advanced find-car direction arrow on iPhone and Apple Watch, export CSV, back up and restore your data including recordings saved on iPhone, and remove banner ads. Backups do not include recordings still waiting on Watch. No subscription.
TVM Financial Cal
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A powerful all-in-one calculator built for students and professionals who need more than the basics. Get financial analysis at your fingertips with TVM calculations, NPV, IRR, amortization, depreciation, and cash flow analysis; everything you need from a BA II Plus equivalent. One purchase, no ads, no subscriptions, no surprises. Download once and calculate with confidence.
Screenshots
Verdict
The clearest difference is price: InstantLog at Free against TVM Financial Cal's $4.99. TVM Financial Cal's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, 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
InstantLog is free to download; TVM Financial Cal costs $4.99 up front. InstantLog sells 1 one-off in-app purchase. TVM Financial Cal asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.
| Parameter | InstantLog | TVM Financial Cal |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | #182 — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | WEI-LUN HUANG | MATEO CADAVID |
In-app purchases
InstantLog
- InstantLog - Quick Timestamp$1.99
TVM Financial Cal
No in-app purchases









