SPIDERPLUS for iPhone vs CalcTri V1
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SPIDERPLUS for iPhone
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----What is SPIDER PLUS?---- SPIDER PLUS is a field work management and information sharing system specialized in the construction industry. Features *Download and store a large quantity of drawings data in a tablet PC and no need to carry around paper drawings. *Attach memos and photos on the drawings at the field. *There is a folder function similar to Windows Explorer, and thumbnail images are also displayed and desired drawings can be easily found. *Approximate distance can be measured through a scale function. *Drawings and photos turned into PDF files on an iPad can be mailed directly without going through a server. *Share information among users in real-time. *Memos and photos can be output as EXCEL/PDF report. ----How to use SPIDER PLUS?---- 1. Register drawings on the server 2. Download to mobile devices from the server and carry around 3. Attach memos and photos on the drawings at the field 4. Share information among users in real-time 5. Edit and output contents entered from mobile devices using a web browser.
CalcTri V1
This utility app offers a calculator, right triangle calculations, and pipe centering. It mimics desktop calculator operation and allows copying from history. Supports angle input in degrees and minutes for precise calculations.
- Basic calculator function
- Right triangle calculations
- Pipe centering calculations
- Angle input in degrees and minutes
- Copy calculation history
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You can use a simple calculator function, calculate a right triangle, and calculate the centering of a pipe. It is based on the operation of a desktop calculator. The calculator can be copied from the calculation history. The calculation of a right triangle is calculated from the length and angle of the sides. You can also enter the angle in degrees and minutes. The centering of the pipe can be calculated as straight and 45 degrees
Screenshots
Verdict
The clearest difference is ads: SPIDERPLUS for iPhone at none against CalcTri V1's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.
| Parameter | SPIDERPLUS for iPhone | CalcTri V1 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Monetization | β | Ad-supported |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details β not scored | ||
| Size | 54 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | SpiderPlus & Co. | TOGUCHI, CO., LTD. |
In-app purchases
SPIDERPLUS for iPhone
No in-app purchases
CalcTri V1
No in-app purchases
Questions
Is SPIDERPLUS for iPhone free?
Is CalcTri V1 free?
Do SPIDERPLUS for iPhone or CalcTri V1 have ads?
Which is updated more often, SPIDERPLUS for iPhone or CalcTri V1?
Other comparisons
