CPS Link vs SAS Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CPS Link
Connect multiple wireless sensors to create a comprehensive diagnostic measurement system. Perform quick single measurements or complex full system diagnostics with analytics. Expand your system over time with new sensor solutions.
- Connect multiple wireless sensors
- Comprehensive diagnostic measurement system
- Perform quick measurements
- Complex system diagnostics with analytics
- Expandable sensor system
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CPS Link™ is a powerful, easy-to-use application that connects multiple CPS wireless sensors together at one time to create the world’s most comprehensive diagnostic measurement system. The flexibility of this patented system enables users to add sensors as required to perform quick one-step measurement tasks or more complex full home, facility or system diagnostics with analytics. A range of high quality wireless sensors are available to accommodate most common HVAC/R service needs, with more innovative sensor solutions in various levels of release and development. Interconnectivity between the CPS Link app and future sensors remains a primary criterion to provide users with the flexibility of building their own custom measurement systems, over time.
SAS Flex
Manage your answering service from your phone. Listen to calls, read transcripts, text callers, and update schedules in real time. Improve customer relationships and ensure no calls are missed.
- Listen to call recordings
- Read call transcriptions
- Text callers directly
- Manage on-call schedules
- Review call activity
- Block unwanted callers
- Post operator alerts
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SAS Flex gives you full control of your answering service right from your phone. Stay connected to your callers, review call activity, and manage your on-call team from anywhere. With SAS Flex, you can listen to calls, read transcripts, send and receive text messages, adjust schedules, and keep your operators informed in real time — all from one easy-to-use app. Build stronger customer relationships, improve quality assurance, and make sure your business never misses a call. With the SAS Flex app, you’ll be able to: • Review every call in detail — listen to recordings, read transcriptions, rate call quality, and add notes for your team. • Text your callers directly and receive SMS replies right inside the app. • Tag and organize calls to keep your account clean and searchable. • Rate and review calls to help improve quality assurance and operator performance. • Block unwanted callers and manage IVR call activity. • Adjust your on-call staff schedule on the go, so the right person always gets the right call. • Add and edit FAQs to keep our operators updated with the latest business information. • Post operator alerts for urgent updates, special instructions, or quick internal messages. • View real-time reports, including minutes used, plan details, and balance information. • Place your account on “Hold My Calls” when you want to temporarily stop warm transfers. About Specialty Answering Service: Specialty Answering Service provides live and AI-assisted answering solutions for small and midsize businesses. Our professional receptionists answer calls, dispatch messages, and support your team 24/7 — helping you build trust with every customer interaction. Over 5,000 businesses rely on SAS to manage their communications and keep operations running smoothly. Try Specialty Answering Service free today and experience how effortless great customer communication can be.
Screenshots
Verdict
The clearest difference is review sentiment: SAS Flex at 25% against CPS Link's 13%. CPS Link's advantage is iOS requirement (11.0 vs 15). 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.
CPS Link ships an update every 3 weeks, SAS Flex fortnightly. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | CPS Link | SAS Flex |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (154 ratings) — better | — |
| Positive reviews | 13.3% of reviews | 25.0% of reviews — better |
| Number of ratings | 154 — better | — |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15 |
| Further details — not scored | ||
| Size | 85 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | CPS Products | Specialty Answering Service |
Customer experience
CPS Link
SAS Flex
Bugs and requests
CPS Link
Reported bugs
4 issues- App crashes on launch
- Bluetooth connectivity problems
- Inconsistent readings and measurements
- Incompatible with newer iOS versions
Requested features
3 requests- Update app to fix compatibility issues
- Improve customer support and responsiveness
- Provide better documentation and troubleshooting guides
SAS Flex
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CPS Link
No in-app purchases
SAS Flex
No in-app purchases









