Comparison

TENS vs Pool Salt Calculator

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

TENS

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MINI TENS & EMS device RELIEVE PAIN: Premium quality mini massager with 16 pre-programmed massage modes, possessing both TENS and EMS, efficiently alleviate pain in shoulder, back, waist, ankles, arm, leg, and wrist at anytime in anywhere. 1. 20 intensity levels and a 20-minute default timer, which can be adjusted from 10 minutes to 60 minutes, provide a more flexible way to relieve pain; 2. The output frequency is 1-120 HZ, and the output pulse width is 100-250 microseconds. 3. 8 program modes, ABS case material, 40V 20% output voltage, 1 channel number. 4. Bidirectional wave waveform, LED display mode, weight about 20g.

About

Pool Salt Calculator

Features
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Pool Salt Calculator: Salt Level Optimization for Your Pool! Maintain the perfect salt level for your saltwater pool and chlorine generator with ease! The Salt Water Calculator app is designed for pool owners and professionals who want accurate and simple calculations for achieving the ideal salt concentration in their pools. Whether you have an inground, above-ground, or a popular pool type, this app is the perfect tool to keep your water crystal clear and balanced. Key Features: Quick and Accurate Calculations: Determine exactly how much salt you need to add to achieve optimal levels for your chlorine generator. Simply input your pool’s size, current salt level, and target level. Predefined Popular Pool Types: Choose from a range of popular pool types with pre-loaded dimensions and characteristics. No need to manually enter the specificsβ€”just select your pool type and let the app handle the rest! Custom Pool Settings: Have a unique pool size? No problem! Enter your custom pool dimensions and water capacity for precise salt calculations tailored to your specific needs. Easy-to-Use Interface: Designed with simplicity in mind, the app offers a user-friendly experience for both beginners and pool professionals. Get results in seconds with minimal input required. Avoid over-salting or under-salting your pool, which can lead to corrosion, equipment damage, or inefficient chlorination. Stay within the recommended range for a safe and enjoyable swimming experience. Why Choose the Salt Water Calculator App? Maintaining the correct salt levels in your pool is crucial for both the longevity of your equipment and the health of your pool water. The Salt Water Calculator app provides a convenient and reliable solution, taking the guesswork out of pool maintenance. Keep your pool sparkling and ready for fun without any hassle! Download Now and Enjoy a Hassle-Free Pool Experience!

Screenshots

TENS1 screens
Pool Salt Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Pool Salt Calculator at every 2 weeks against TENS's every 71 months. TENS's advantage is iOS requirement (12.0 vs 17.5). On price, ads, 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TENS ships an update every 71 months, Pool Salt Calculator every 2 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

Scorecard2 real differences Β· 4 level
TENS versus Pool Salt Calculator: the parameters behind the verdict, then further details
ParameterTENSPool Salt Calculator
PriceFreeFree
Update frequencyEvery 71 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 β€” better17.5
Further details β€” not scored
Size2 MB25 MB
Age rating9+4+
DeveloperShenzhen Chileaf Electronics Co.,LTDNorbert Makk

In-app purchases

None

TENS

No in-app purchases

None

Pool Salt Calculator

No in-app purchases

Questions

Is TENS free?
TENS is free to download, with no in-app purchases.
Is Pool Salt Calculator free?
Pool Salt Calculator is free to download, with no in-app purchases.
Do TENS or Pool Salt Calculator have ads?
Neither TENS nor Pool Salt Calculator shows ads.
Which is updated more often, TENS or Pool Salt Calculator?
TENS ships an update every 71 months, and Pool Salt Calculator every 2 weeks. Most recently, TENS was updated on November 3, 2026 and Pool Salt Calculator on October 27, 2026.

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