Spell and Say 2 vs Two Links Double Pendulum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spell and Say 2
This app transforms typed text into a robotic voice, allowing users to experiment with different words and sentences. Adjust pitch and speed for unique speech variations. It's designed for fun and exploration of voice modulation.
- Robotic voice playback
- Text-to-speech functionality
- Adjustable pitch
- Adjustable speech speed
- Keyboard input for text
- Retro sound effects
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Have some fun with the Spell and Say 2, robotic voice player. You can also paste text into the screen and have it read aloud. Children will also get a kick out of the old retro sounding robotic voice and could possibly spend hours typing different words and sentences just to hear variances in the speech. Just tap on the screen and a keyboard will appear to type what you want. When you are finished, touch speak. The Spell And Say 2 also has sliders to adjust the pitch and speed to your liking. Enjoy!
Two Links Double Pendulum
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Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset
Screenshots
Verdict
The clearest difference is iOS requirement: Two Links Double Pendulum at 18.2 against Spell and Say 2's 26.1. 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.
Spell and Say 2 ships an update every 48 months, Two Links Double Pendulum every 47 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Spell and Say 2 | Two Links Double Pendulum |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 48 months | Every 47 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.1 | 18.2 — better |
| Further details — not scored | ||
| Size | 161 MB | 281 MB |
| Age rating | 4+ | 4+ |
| Developer | Tracy Gates | Eliott Radcliffe |
In-app purchases
Spell and Say 2
No in-app purchases
Two Links Double Pendulum
No in-app purchases
Questions
Is Spell and Say 2 free?
Is Two Links Double Pendulum free?
Do Spell and Say 2 or Two Links Double Pendulum have ads?
Which is updated more often, Spell and Say 2 or Two Links Double Pendulum?
Other comparisons
