Solis vs OneTap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solis
Track sunrise, sunset, and twilight times globally with visually appealing gradient displays. Receive notifications for key solar events and access golden and blue hour times for photography. A simple widget provides at-a-glance information.
- Sunrise and sunset time tracking
- Twilight time display (golden/blue hour)
- Global city support
- Event notifications
- Today widget
- Twilight type explanations
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Sunrise, sunset, and twilight time time-tracker - Solis shows you when it gets dark or light in any city around the world with its beautiful gradient. - Setup notifications for all the important sun events so you never get caught out in the dark again. - See the times of golden and blue hour for photography with the perfect light. - Simple today widget to know at a glance when the next sunrise, sunset, first light, or last light occurs. - Learn about the three different types of twilight and find out how they affect the light in the sky.
OneTap
This utility app provides instant flashlight and SOS functionality with multiple access points like widgets and Siri. It offers adjustable LED and screen light modes, an auto-off timer, and privacy-focused features with no ads or internet connection required.
- Instant LED and screen light
- SOS and Morse code translator
- Auto-off timer
- Home and Lock Screen widgets
- Control Center and Siri integration
- Privacy-focused, no internet required
- Adjustable brightness and color modes
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OneTap Light is the flashlight that gets out of your way. One tap, instant light — under 300ms. No ads, no tracking, no internet. Ever. INSTANT ACCESS EVERYWHERE Turn on light from anywhere: the app, a Home Screen or Lock Screen widget, Control Center, the Action Button, or "Hey Siri." One tap, under 300 milliseconds. No splash screens, no loading, no sign-up. TWO LIGHT MODES • LED Torch — full-power camera flash, now with adjustable brightness on supported iPhones • Screen Light — soft white, warm, or red light, plus a full color wheel. Perfect for reading, camping, or keeping your night vision AUTO-OFF TIMER Set 2, 5, 10, or 20 minutes and your flashlight turns off by itself — no wasted battery, no torch left on overnight. EMERGENCY SUITE • SOS — international Morse code signal, one tap to start and stop • Morse translator — type any message and watch it blink in Morse • Beacon — a slow, bright pulse to mark your location • Strobe — deliberately separated and gated, adjustable frequency, never triggers by accident PRIVACY FIRST — FOR REAL • Zero internet connection — no network permission at all • Zero analytics, telemetry, or trackers • Zero ads, now and forever • Everything stays on your device WIDGETS & QUICK ACCESS Home Screen and Lock Screen widgets, Control Center control, and Siri Shortcuts put light one tap away without opening the app. Pocket protection prevents accidental activation. BUILT FOR EVERYONE VoiceOver support, high-contrast interface (WCAG AA), large one-handed touch targets, and 50 languages. Works fully offline — perfect for emergencies, power outages, camping, or everyday use. COMPLETELY FREE No ads. No in-app purchases. No subscriptions. The whole app is free and always will be. A flashlight should just work — instantly, privately, every time. That's OneTap Light.
Screenshots
Verdict
The clearest difference is rating: OneTap at 5.0 against Solis's 4.8. OneTap also leads on iOS requirement (14.0 vs 18.0). Solis's advantage is ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases 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.
OneTap holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Solis has 5 ratings behind it against 1, so its average is the more settled of the two.
Solis ships an update every 2 months, OneTap every 4 months. The most recent releases landed on October 20, 2026 and October 31, 2026 respectively.
| Parameter | Solis | OneTap |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Jake Runzer | lapnito.cz s.r.o. |
Customer experience
Solis
OneTap
In-app purchases
Solis
No in-app purchases
OneTap
No in-app purchases









