Comparison

Todo vs Keysight Meter Logger

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

Head to head
About

Todo

This powerful task manager helps you organize projects, set reminders, and prioritize tasks to achieve your goals. It supports the Getting Things Done methodology and offers seamless syncing across devices. Ideal for managing personal and professional to-dos efficiently.

Highlights
  • Project and sub-task management
  • Recurring tasks with detailed options
  • Multiple task alerts and reminders
  • Drag and drop task organization
  • GTD methodology support
  • Automatic background syncing
  • Shared lists for collaboration
Features
Read full description

This is the original To-Do and Task Management List and one of the most popular, powerful, and award-winning to-do list and task manager iOS and iPad apps ever! Todo has been used by millions of individuals, families and teams for GETTING THINGS DONE. "Todo has stood the test of time" -Silicon Slopes. Winner of the “Best Productivity App for iPad” (Best Apps Ever, To-Do Apps) and listed among the “Top Ten Paid Productivity Apps..." "Appigo Todo oozes with awesomeness. I’ve tried numerous iOS task-management apps, and none to date have satisfied me as much as Todo.” –Macworld, 4.5 stars. Four main reasons to consider Todo: 1. REAL PRODUCTIVITY. Unlike lightweight, freebie or cutesy list tools, Todo 10 is useful when you have a deadline, NEED to focus, prioritize and get things done quickly--from home or school projects to dozens of detailed work tasks. Includes: Projects, Sub-tasks, Start Dates, Due Dates, Recurring Tasks (with detailed recurring options), Multiple Task Alerts, Overdue Tasks, Drag and Drop, Search, Print Lists, Folders, and much more. 2. PROVEN GTD METHODOLOGY. Todo uses the popular Getting Things Done approach with Focus To-do Lists, Starred Tasks, Multi-level Priorities, Quick Entry, Context, and Projects with Layered and Prioritized Sub-Tasks—all recommended GTD approaches. 3. BUILT-IN SYNCING. Sync automatically in the background with Todo Cloud Sync. Keep everything in sync, access your data from any device and never be locked into a specific service—your data remains yours. 4. COOLNESS • Add, schedule, and organize your to-dos • Set due dates and reminders to never miss an important date or deadline • Quickly add tasks using Siri, Email or Todo Cloud’s Quick Add buttons • Streamline projects, checklists and tasks using customized Siri commands. • Customize task reminders based on day (January 1), time (2:00pm) and place (when you are near the grocery store) • Create themed lists to organize your to-dos: home, work, friends, etc. • Take control of how you view and execute your to-dos with Todo Smart Lists • Collaborate with friends, family and/or team members using Shared Lists • Leave yourself (or others) updates through in-task notes and comments • Create recurring tasks for those to-dos that come over and over again • Sync your to-dos across all your devices 14 day FREE trial! Todo Cloud is one of the most affordable individual or team task management solutions. Others cost $10- $50 more per year, and some even require you to pay extra for every platform. Not Todo Cloud. The Todo subscription will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless cancelled at least 24-hours before the end of the current period. You can cancel the subscription renewal at any time, and the subscription you purchased will remain active until the end of the current period. Manage your subscriptions on the App Store's Account Settings after purchase (http://support.apple.com/kb/ht4098). EXCELLENT CUSTOMER SUPPORT Please visit us for help at http://help.appigo.com or email support@appigo.com Terms of Use - https://appigo.com/terms-of-use/ Privacy Policy - https://appigo.com/privacy-policy/

About

Keysight Meter Logger

Stream real-time measurements from compatible digital multimeters and clamp meters wirelessly. View logged data in tables or graphs, calculate Min/Max/Average, and share recordings in CSV or PDF formats. Features measurement voice-out for enhanced productivity and safety.

Highlights
  • Real-time measurement streaming via Bluetooth
  • Tabular and graphical data viewing
  • Min/Max/Average calculations
  • Retrieve and view recorded data
  • Share data in .csv and .pdf formats
  • Measurement voice-out capability
Features
Read full description

Keysight Meter Logger for iPhone and iPad improves your productivity and safety by allowing you to stream measurements in real time from up to 3 Keysight handheld digital multimeters and clamp meters wirelessly: - Real time streaming of measurement data via Bluetooth - View your continuous and manually logged data in tabular or graphical format - View Min/Max/Average calculation - Retrieve and view previously recorded data - Share recorded data in .csv and .pdf format via multiple platforms (Email, Dropbox, etc.) - Measurement voice-out capability Tips: To establish Bluetooth connection, enter PIN: 1234 to pair with Keysight U1117A Bluetooth Adapter (sold separately). Note: Keysight Meter Logger is optimized for iPhone 5 and newer versions of iPhone and iPad. Supports the following Keysight instruments: U1231A, U1232A, U1233A, U1241B, U1242B, U1241C, U1242C, U1251B, U1252B, U1253B, U1271A, U1272A, U1273A, U1273AX, U1281A, U1282A

Screenshots

Todo4 screens
Keysight Meter Logger4 screens

Verdict

The call

The clearest difference is review sentiment: Todo at 48% against Keysight Meter Logger's 0%. Todo also leads on rating (4.4 vs 3.0) and update cadence (every 2 months vs every 18 months). Keysight Meter Logger's advantage is in-app purchases (none vs 2) and iOS requirement (7.0 vs 12.0). On price, ads 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. Todo sells 2 in-app purchases, starting at $5.99 per month. Keysight Meter Logger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Todo holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: Todo has 397 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 48% of Todo's written reviews are positive against 0% of Keysight Meter Logger's.

UpkeepUpdate frequency

Todo ships an update every 2 months, Keysight Meter Logger every 18 months. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Todo versus Keysight Meter Logger: the parameters behind the verdict, then further details
ParameterTodoKeysight Meter Logger
PriceFreeFree
Rating4.4 (397 ratings) — better3.0 (2 ratings)
Positive reviews47.7% of reviews — better0.0% of reviews
Number of ratings397 — better2
Update frequencyEvery 2 months — betterEvery 18 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS12.07.0 — better
Further details — not scored
Size115 MB47 MB
Age rating4+4+
DeveloperAppigoKeysight Technologies, Inc.

Customer experience

Todo

All ratings396 ratings
Positive86.1%
Neutral2.3%
Negative11.6%
Written reviews344 reviews
Positive47.7%
Neutral7.6%
Negative44.8%

Keysight Meter Logger

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Todo

Reported bugs

4 issues
  • App crashes and freezes on newer iOS versions
  • Repeating tasks not functioning as expected
  • Unexpected data deletion after updates
  • Sync issues between mobile and desktop apps

Requested features

4 requests
  • Improved Outlook/Exchange integration
  • Ability to set custom reminders and alerts
  • Better task prioritization and sorting options
  • Seamless iCloud/Dropbox sync without subscription

Keysight Meter Logger

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Todo

Subscriptions2
  • Todo Cloud Premium$5.991 Month
  • Todo Cloud Premium$29.991 Year
None

Keysight Meter Logger

No in-app purchases

Questions

Is Todo free?
Todo is free to download, with in-app purchases available.
Is Keysight Meter Logger free?
Keysight Meter Logger is free to download, with no in-app purchases.
Which has better reviews, Todo or Keysight Meter Logger?
Todo is rated higher. Todo averages 4.4 out of 5 from 397 ratings, while Keysight Meter Logger averages 3.0 from 2 ratings.
Do Todo or Keysight Meter Logger have ads?
Neither Todo nor Keysight Meter Logger shows ads.
Which is updated more often, Todo or Keysight Meter Logger?
Todo ships an update every 2 months, and Keysight Meter Logger every 18 months. Most recently, Todo was updated on October 21, 2026 and Keysight Meter Logger on October 8, 2026.

Other comparisons