Solar Sphere vs Bend Aid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Sphere
Monitor real-time solar activity with Kp-index data and high-resolution solar images. Understand geomagnetic disturbances and their impact on Earth's magnetic field. Ideal for drone pilots needing to check conditions before flying.
- Real-time Kp-index monitoring
- High-resolution solar images
- Kp-index explanation
- Geomagnetic storm indication
- Drone flying safety guidance
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The Solar Sphere provides current value of Kp-index derived from the NOAA Space Weather Prediction Center using data from multiple ground-based magnetometers. Also, current solar images are available in 4 different high resolution formats. The Kp-index quantifies solar disturbances in the horizontal component of earth's magnetic field with an integer in the range 0-9 with 1 being calm and 5 or more indicating a geomagnetic storm. For drone flyers, please only fly on solar KP Index less than 5.
Bend Aid
This app uses precise mathematical formulas to calculate conduit and pipe bends, eliminating guesswork. It determines the optimal bend angles and lengths needed for various pipe types, helping professionals work more efficiently and save time and money.
- Accurate mathematical formulas for bending
- Eliminates guesswork in pipe bending
- Calculates smallest possible bend angle
- Solves centerline for any pipe size
- Supports over 20 different bend types
- Provides detailed bend placement and length
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Bend conduit right the first time. Bend Aid is a professional conduit bending solver that uses the correct mathematical formulas for the shapes conduit is actually bent into — not the cosecant shortcut, not charts, not correction factors. An offset is not a right triangle. A right triangle has three straight lines; an offset has two bends and a straight section, and gain happens in every bend. The cosecant method has been used for almost 100 years as a "trick of the trade" because the correct math is too complicated to do by hand — it's "close enough most of the time," until a large bend radius or bend angle forces you to fix the bend. It's not your fault you were taught tricks. Bend Aid does the correct math for you. HOW IT WORKS Measure where the conduit has to fit, enter your dimensions, and use the answers to lay out the bend. Measure any two of the four right-triangle values and Bend Aid solves the rest — including the bend angle, which is not the same as the measured angle. Bend Aid solves the whole offset, from the start of the first bend to the finish of the second, and finds the smallest bend angle that fits between obstructions or supports — making wire pulling easier, reducing strain on conductors, and saving fittings, nipples, and material. WHAT BEND AID SOLVES • Offsets — including rack and concentric offsets • Saddles — 3-point and 4-point, with rack and concentric variations • Kicks — simple kicks, rack and concentric kicks, kicks to horizontal or vertical • Nineties — single 90s, back-to-back, rack, and concentric bends • Right triangles — enter any two values, get the rest • Find Bend Radius — measure your bender's true centerline radius • Chart Bender — solve bends using your bender's chart values EVERY ANSWER YOU NEED Bend Aid gives you all the numbers the old methods can't: where every bend mark goes, the total finished length, whether the conduit will still fit in the bender for the second bend, and the layout dimensions to cut and thread to length when needed. WORKS WITH ANY CONDUIT Bend Aid solves the centerline of the bends, so it works with any type and any size of conduit — EMT, rigid, IMC, PVC — and any bender, once you know its centerline radius. YOUR NUMBERS, YOUR FORMAT Enter and read answers in decimal inches, fractions to 1/16" or 1/32", or millimeters. Real-time validation catches entry errors before they reach the conduit. BUILT FOR THE TRADE If your job is skilled labor, you know tools are how the work gets done. Benders, tape measures, levels, and pencils are tools — Bend Aid is the tool that ties them together. Stop guessing, stop practice-bending, stop wasting time and material. Measure, enter, bend.
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Verdict
The clearest difference is price: Solar Sphere at Free against Bend Aid's $3.99. Solar Sphere also leads on ratings volume (7 vs 1) and iOS requirement (9.0 vs 17.6). Bend Aid's advantage is rating (5.0 vs 4.1) and chart position (#187 vs unranked). On review sentiment, 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
Solar Sphere is free to download; Bend Aid costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Bend Aid holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Solar Sphere has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 44% of Solar Sphere's written reviews are positive against 50% of Bend Aid's.
Solar Sphere ships an update every 9 months, Bend Aid every 12 months. Both last shipped on October 17, 2026.
| Parameter | Solar Sphere | Bend Aid |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.1 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 44.4% of reviews | 50.0% of reviews — better |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 9 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #187 — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 28 MB |
| Age rating | 17+ | 17+ |
| Developer | Pulsely Consulting | P Stroney |
Customer experience
Solar Sphere
Bend Aid
In-app purchases
Solar Sphere
No in-app purchases
Bend Aid
No in-app purchases









