VSP vs Spread Test Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VSP
This VoIP softphone connects to the VSP Platform, requiring an administrator-generated account for login. It allows enterprises and operators to manage softphone settings and configurations. Emergency call functionality is limited and not intended for such use.
- VoIP softphone client
- VSP Platform integration
- Administrator account required
- Enterprise provisioning
- Softphone settings management
- Limited emergency call handling
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VSP for iOS is a VoIP softphone explicitly tied to the VSP Platform and requires an administrator generated to account for login. If you do not have an account given to you by your company, operator, or VSP, you will not be able to use the softphone client. The VSP Platform’s Provisioning Module is a powerful way for enterprises and operators to distribute, configure, and manage VSP softphones and enables users to store their softphone related settings a single, convenient location. With the Provisioning Module, customers can fully provision their VSP softphones for use with their enterprise, SMB, ITSP, or operator VoIP solution. IMPORTANT NOTE: This version of VSP is tied to VSP hosted Provisioning Module and requires an account set up by your operator or enterprise. Without an account, the client will not work. Emergency Calls VSP mobile products provide handling designed to redirect emergency calls to the Native Cellular dialer when possible on a best reasonable commercial effort basis, however, this functionality is also dependent on the operating system of the mobile phone which is outside of our control and subject to change at any time. As a result, the official position of VSP is that the VSP product is not intended, designed, or fit for placing, carrying, or supporting Emergency Calls. VSP will not be liable for any costs or damages arising either directly or indirectly from the use of the software for Emergency Calls. Using VSP as a default dialer may interfere with dialing emergency services. To all of our client. As per directive by Apple's policy. We are informing you that our APP does not collect any classified information in your app or device and we respect each individual data privacy.
Spread Test Calculator
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Calculates the SIZE GUIDE NUMBER and UNIFORMITY INDEX value from the results of your standard fertiliser sieve. This is used to determine the characteristics of your fertiliser.
Screenshots
Verdict
The clearest difference is update cadence: VSP at every 3 months against Spread Test Calculator's every 8 months. Spread Test Calculator's advantage is iOS requirement (11.0 vs 15.0). 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.
VSP ships an update every 3 months, Spread Test Calculator every 8 months. Both last shipped on September 14, 2026.
| Parameter | VSP | Spread Test Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (18 ratings) — better | — |
| Positive reviews | 11.1% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | D T S Limited | Brian Dockerty |
In-app purchases
VSP
No in-app purchases
Spread Test Calculator
No in-app purchases
Questions
Is VSP free?
Is Spread Test Calculator free?
Do VSP or Spread Test Calculator have ads?
Which is updated more often, VSP or Spread Test Calculator?
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