Comparison

DT Smart Battery vs Switch Log

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

Head to head
About

DT Smart Battery

Monitor your smart battery pack's performance and status remotely via Bluetooth. View real-time data like voltage, current, temperature, and remaining power. Receive alerts for critical conditions and set custom reminders.

Highlights
  • Real-time battery status monitoring
  • Voltage, current, and temperature readings
  • Remaining power percentage
  • Protection information alerts
  • Individual cell voltage monitoring
  • Customizable power and temperature reminders
Features
Read full description

The smart battery pack has a built-in remote Bluetooth module, and the APP can read the following information by connecting the APP with the mobile phone through Bluetooth: 1. Working status of battery pack: charging point, discharge, working voltage, current, temperature, residual power, etc.; 2. Overvoltage, undervoltage, overcurrent, overtemperature and other protection information; 3. The number of strings of cells, the voltage and release of each cell; 4. Hardware short circuit and delay, equalization opening voltage; 5. Set the threshold of the remaining power and temperature reminder, and receive a reminder below the value of the fixed threshold;

About

Switch Log

Read full description

Records ON/OFF of lighting and home appliances, and displays electricity charges in real time. Grasp usage trends with daily and monthly graphs to help you save money on your electricity bill. Easily record ON/OFF with Siri or NFC tag. --------------- Features --------------- - Can check the usage status, electricity cost, and operating time of each item in real time. - Check your status with widgets on your home screen or lock screen. - Calculate electricity charges by tier (metered rate), by time zone, and flat rate. - Compare electricity rates across multiple power contracts. - Can group items and update ON/OFF collectively. - Can fix the scale of the graph. - iCloud allows you to sync your data across multiple devices such as iPhones and iPads. --------------- Siri and NFC tags --------------- Add logs and operate items with Siri and NFC tags. Measuring instruments can be switched with NFC tags. Note Items cannot be manipulated directly from this app. Works with Siri, HomeKit, and other home automation devices like SwitchBot, Nature Remo, TRÅDFRI, and more. NFC tags are limited to read/write compatible models (iPhone XS or later). --------------- Electricity price comparison function --------------- There are contracts where the electricity rate changes depending on the time of day when electricity is used a lot (daytime on weekdays, nighttime, holidays, etc.). You can compare multiple contracts based on what happens when you change to such a contract. If you record logs for a long period of time, the tendency of usage that suits you will become clearer. Let's start by recording and accumulating logs. --------------- what you can do --------------- ## Dashboard - Display daily, monthly, and hourly usage graphs and electricity bill graphs. - Today's current usage status, usage amount and amount ranking, daily/monthly totals, etc. - Step-by-step, time-of-day, flat-rate electricity bill calculation. - Can display/hide graphs and set the display order. ## Calendar - List of daily logs and graphs of power consumption. - Future power consumption graph. ## Item - Register items (household appliances and power consumption items) and record ON/OFF for each item (log). [Item example] Home appliances: refrigerators, lighting, TVs, air conditioners, computers, air purifiers Power consumption items: standby power, miscellaneous power (total power of items that are only used for a short time at a time) - Can check the operating status of each item and electricity charges in a list. - Switch display/hide for each item. (Useful for hiding things you don't use often.) - Register the mode of the item and calculate the power consumption for each mode. [Mode example] Fan → Weak (15W), Medium (25W), Strong (40W) - Can register a series of actions of an item as an action and record each action in one operation. - Display log list and graph (by day/month) for each item. - Add Siri Shortcuts. - Can write NFC tags. ## Cost - Register electricity contracts and record monthly bills. (Power consumption and electricity bill) - Can register and record electricity bill details. (Basic charge, fuel cost adjustment amount, etc.) - Register multiple unit price application periods in case the unit price varies even for the same contract. ## Device - Can register multiple instruments and add records while switching. - Can add a memo if you measure another item with the same instrument. ## Groups - Can group items that you always use together, items in the same room, etc. - One item can be registered in multiple groups. - Add Siri shortcuts and write NFC tags. - Can batch update grouped items. (Siri and NFC are also possible) --------------- About subscriptions and paid features --------------- Please refer to the following for the terms and conditions for using subscriptions and paid functions. 1. Privacy Policy: https://gsoft.jp/privacypolicy/ 2. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

DT Smart Battery4 screens
Switch Log4 screens

Verdict

The call

The clearest difference is in-app purchases: DT Smart Battery at none against Switch Log's 8. DT Smart Battery also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.0). Switch Log's advantage is update cadence (every 2 weeks vs every 3 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Switch Log sells 8 in-app purchases, starting at $0.99 per year. DT Smart Battery asks for nothing beyond the download.

UpkeepUpdate frequency

DT Smart Battery ships an update every 3 months, Switch Log every 2 weeks. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
DT Smart Battery versus Switch Log: the parameters behind the verdict, then further details
ParameterDT Smart BatterySwitch Log
PriceFreeFree
Rating1.6 (7 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size28 MB18 MB
Age rating4+4+
Developer应刚 郑G-SOFT

In-app purchases

None

DT Smart Battery

No in-app purchases

8 purchases

Switch Log

Subscriptions2
  • Hide ads (Annual amount)$0.991 Year
  • Additional graphs (Yearly)7 Days trial$0.991 Year
One-time6
  • Additional graphs (One Month)$0.99
  • Siri shortcut for Remo API$0.99
  • Hide ads (Unlimited)$1.99
Show 3 more
  • Item history$1.99
  • Additional graphs (Unlimited)$2.99
  • Electricity price comparison$3.99

Questions

Is DT Smart Battery free?
DT Smart Battery is free to download, with no in-app purchases.
Is Switch Log free?
Switch Log is free to download, with in-app purchases available.
Do DT Smart Battery or Switch Log have ads?
Switch Log shows ads; DT Smart Battery does not.
Which is updated more often, DT Smart Battery or Switch Log?
DT Smart Battery ships an update every 3 months, and Switch Log every 2 weeks. Most recently, DT Smart Battery was updated on October 1, 2026 and Switch Log on October 18, 2026.

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