Proportional Scale vs Poor Man's Throttle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proportional Scale
Easily calculate new image dimensions while preserving aspect ratio to avoid distortion. This tool helps graphic designers, photographers, and professionals accurately resize images for various needs, including blueprinting and sign making.
- Scale image dimensions
- Maintain image proportions
- Fraction modes
- Percent mode
- Image scale tool
- Image preview
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Have you ever resized an image that resulted in image stretching or unwanted distortion. Proportional Scale App makes it easy to calculate new image dimensions and maintain the aspect ratio; leaving no distortion or stretching. How To Use: * Enter the dimensions of the image to be scaled. * Change the scale ratio with slider or text entry. * Use the scaled image to resize the image. “As a graphic designer I have the need to scale images all the time. This works great and is easy to use.” - SadieGirl22 “I scale photos all the time and usually have to calculate both dimensions. With this app I can find both dimensions quicker. It saves me time and it looks great.” - Bowz Features: * Scale image dimensions * Maintain image proportions * Fraction Modes * Percent Mode * Image scale tool Image Scale Tool: This tool lets the user select an image and scale it to an exact pixel size. The tool will show an image preview to help the user know how big the new size actually is. "I work for a blueprint company and sign shop. We are always looking at size limitations imposed by the customers. This is the best answer to all the "what if it was" questions. Also the customer and I can see quickly how pixilated an image would become if it gets blown up too big without expensive graphic software. Some software developers go above and beyond, thank you for adding this great feature to an already amazing app." - DarVader55 Get Proportional Scale Today!
Poor Man's Throttle
Transform your smartphone into a wireless throttle for model trains. This app enables smooth, responsive control of locomotives using inexpensive DIY electronics, offering a cost-effective alternative to commercial systems. Ideal for hobbyists and makers looking to upgrade their DC or dead-rail layouts.
- Wireless smartphone throttle
- PWM motor control for smooth operation
- Control speed, direction, and stop
- Ideal for DC and dead-rail layouts
- Low-cost DIY hardware integration
- Walk-around layout control
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FREE DIY Wireless Model Train Control — Built for Hobbyists, **Poor Man’s Throttleturns your smartphone into a wireless throttle for model trains. Designed formodel railroad hobbyists, makers, and DIY builders**, the app allows you to control a locomotive using inexpensive electronics instead of costly commercial control systems. With simple ESP32-based hardware, your phone becomes asmooth, responsive wireless throttle**. --- Smooth Motor Control Many traditional DC transformers struggle with low-speed operation. Locomotives often: • hum at low speeds • start with weak torque • move in jerky steps Poor Man’s Throttle solves this by usingPWM motor control (Pulse Width Modulation)instead of simply lowering voltage. This allows locomotives to: • start smoothly • run at extremely slow speeds • maintain strong torque • eliminate most transformer hum --- Wireless Smartphone Control Control your locomotive directly from your phone. Features include: • Speed control • Forward direction • Reverse direction • Stop • Additional command support Because control is wireless, you canwalk around your layout while operating trains**, just like with professional wireless throttle systems. --- A Major Upgrade for Traditional DC Layouts Poor Man’s Throttle works especially well with classic DC transformers. Instead of using the transformer to regulate speed, the transformer is set tofull powerwhile Poor Man’s Throttle performs the motor control using PWM. This approach provides: • smoother slow-speed operation • higher starting torque • reduced transformer noise • modern wireless control for classic layouts --- Perfect for Dead-Rail Builders The system also works extremely well withdead-rail locomotivespowered by onboard batteries. Builders commonly use: • cordless tool batteries (DeWalt, Milwaukee, Ryobi, etc.) • lithium battery packs • LiPo or lithium-ion cells • NiMH packs • other hobby batteries This flexibility allows hobbyists to useinexpensive, widely available power sources**. --- A DIY System That Costs Around $20 A typical Poor Man’s Throttle hardware build costs about: • ESP32 development board • IBT-2 motor driver • 5V logic power module Total hardware cost is oftenaround $20 per locomotive**. Many builders already have some of these parts available. --- Built for the Model Railroad Community Poor Man’s Throttle was created to makewireless train control accessible to everyone**. Instead of expensive proprietary systems, this project focuses on: • simple hardware • open DIY building • affordable components • sharing knowledge with the hobby community The goal is simple: **Give model railroaders a powerful wireless throttle they can build themselves.** --- Who This App Is For This app is ideal for: • model railroad hobbyists • dead-rail builders • DC layout operators • electronics makers and tinkerers • DIY train control enthusiasts Bothbeginner buildersandadvanced hobbyistscan use the system. --- Learn More Hardware build guides, documentation, and project information are available through the Poor Man’s Throttle project resources. https://github.com/jamocle/PoorMansThrottle-DIY/blob/main/README.md Build your own throttle. Control your trains wirelessly. Keep the hobby affordable.
Screenshots
Verdict
The clearest difference is price: Poor Man's Throttle at Free against Proportional Scale's $1.99. Poor Man's Throttle also leads on rating (5.0 vs 4.5) and update cadence (every 2 days vs every 5 months). Proportional Scale's advantage is ratings volume (14 vs 4) and iOS requirement (8.0 vs 15.0). On ads, in-app purchases, monetization model 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
Poor Man's Throttle is free to download; Proportional Scale costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Poor Man's Throttle holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 14 and 4 respectively. Written reviews point the same way: 75% of Proportional Scale's written reviews are positive against 100% of Poor Man's Throttle's.
Proportional Scale ships an update every 5 months, Poor Man's Throttle every 2 days. Both last shipped on October 31, 2026.
| Parameter | Proportional Scale | Poor Man's Throttle |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (14 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 4 |
| Update frequency | Every 5 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Courtney & Company | James Theimer |
Customer experience
Proportional Scale
Poor Man's Throttle
In-app purchases
Proportional Scale
No in-app purchases
Poor Man's Throttle
No in-app purchases
Questions
Is Proportional Scale free?
Is Poor Man's Throttle free?
Which has better reviews, Proportional Scale or Poor Man's Throttle?
Do Proportional Scale or Poor Man's Throttle have ads?
Which is updated more often, Proportional Scale or Poor Man's Throttle?
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