Sideways vs SPK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sideways
This Safari extension allows you to rotate any webpage, even when your device's screen orientation is locked. Enjoy a more comfortable viewing experience on your iPhone or iPad.
- Rotate webpages
- Override screen rotation lock
- Safari extension
- Works on iPhone and iPad
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Sideways is a Safari extension for rotating webpages even if the screen orientation is locked.
SPK
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SPK-ToolBox is a mobile companion built for sugar technologists, plant engineers and process operators who need fast, reliable, industry-grade calculations on the go. Combine essential calculators, accurate steam tables and reference data in one easy-to-use app. Key features: - Technical sucrose solution calculators: density, specific enthalpy, specific heat, dynamic viscosity, boiling point elevation, solubility coefficients, and more. - Saturated and superheated steam tables — search by pressure or temperature. - Flexible unit converter for engineering, chemistry and energy units. - Reference database: bulk densities, milk of lime properties, fuel LHV & CO₂ factors, optical rotation constants. Bilingual interface (English / French) and configurable appearance (Dark/Light).
Screenshots
Verdict
The clearest difference is update cadence: SPK at fortnightly against Sideways's every 12 months. SPK also leads on iOS requirement (14.0.0 vs 16.0). 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.
Sideways ships an update every 12 months, SPK fortnightly. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.
| Parameter | Sideways | SPK |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (8 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | And a Dinosaur | REDOUANE ABDELOUARIT |
In-app purchases
Sideways
No in-app purchases
SPK
No in-app purchases
