Sun Day Tracker vs ReceiptCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun Day Tracker
Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.
- Track daily vitamin D intake
- Sunlight exposure monitoring
- Simple interface
- Daily tracking
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A simple app to track you daily vitamin D intake from the sun.
ReceiptCal
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ReceiptCal logs food automatically from supported restaurant and delivery receipts. Use your private @receiptcal.com address at checkout, or forward food receipts. Estimated calories and macros appear in your log after processing. No searching for each item. No meal-by-meal typing. YOUR DAY, ADDED UP See meals, calories, protein, carbs, and fat in one place. Adjust a portion or ignore an item when needed. Sources stay in the meal details. MORE WAYS TO LOG Photograph food or scan a packaged-food barcode. Ask voice for recipe ideas, reuse a suitable community recipe or create something new, and log a serving when you eat it. Ask voice to add what a recipe needs to your Sprouts cart; it skips what's in your pantry, and you check out with Sprouts. OPTIONAL HEALTH SYNC With your permission, logged nutrition syncs to the Health app when ReceiptCal syncs. ReceiptCal does not read your Health data. YOUR INBOX STAYS YOURS No personal-mailbox access. ReceiptCal only receives email sent to your private receipt address. You can delete your account and stored meals in the app. Nutrition values are estimates for everyday tracking, not medical advice. Portions and preparation vary. Some items may not resolve.
Screenshots
Verdict
The clearest difference is update cadence: ReceiptCal at every 6 days against Sun Day Tracker's monthly. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sun Day Tracker ships an update monthly, ReceiptCal every 6 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Sun Day Tracker | ReceiptCal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (28 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | permissionless tech, llc | Mihir Kavishwar |
In-app purchases
Sun Day Tracker
No in-app purchases
ReceiptCal
No in-app purchases









