Comparison

Underload vs BlitzCheck

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

Head to head
About

Underload

This productivity app helps you focus by displaying only one task at a time from your to-do list. It syncs seamlessly with Apple Reminders, allowing you to manage tasks across all your devices and use familiar voice commands and shortcuts.

Highlights
  • Single task display
  • Syncs with Apple Reminders
  • Cross-device synchronization
  • Supports Siri and Shortcuts
  • Linear task progression
Features
Read full description

It's all in the title. Do you ever feel overwhelmed by the sheer number of tasks on your to-do list? Adding all your tasks only to be faced with a seemingly endless list can make it hard to get anything done. That's why I created Underload, a to-do list app for iPhone, iPad, and Mac that only shows you one task at a time. You can add all your tasks, but you'll only see the next one you need to tackle. You get a clear, linear path forward, a singular focus. Best part is, it two-way syncs with Apple Reminders, so your tasks sync across all your devices and you can keep using Siri, HomePod, Shortcuts, and whatever other integrations you're used to to manage tasks. Privacy Policy: https://www.underload.app/privacypolicy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

BlitzCheck

This app helps you stay organized and boost productivity with a fast, customizable to-do list. Focus on your tasks without clutter, personalizing them with custom colors for a streamlined experience.

Highlights
  • Full color customization
  • Simplicity-first design
  • Lightning-fast task management
  • Personalized task organization
  • No ads or distractions
Read full description

BlitzCheck – A Fast, Fully Customizable & Clean Simple To-Do List App! Stay organized and boost your productivity with BlitzCheck, the lightning-fast to-do list app designed for simplicity. Whether you're managing work tasks, school assignments, or personal errands, BlitzCheck helps you focus on what matters most—without the clutter. Key Features: Full Color Customization: Personalize your tasks with custom colors or choose from predefined color profiles to match your style. Simplicity First: A clean, intuitive design that makes checking to-dos quick and easy. Lightning-Fast: Add, modify & delete tasks in an instant—no delays, no distractions! Take control of your to-dos with BlitzCheck and get more done, faster! BlitzCheck offers premium features and customization at a fraction of the price of other productivity apps. With no ads, no distractions, and continuous updates, you're supporting a solo developer who has put a lot of effort into creating a fast, reliable tool to improve your daily life. A small price to pay for a big boost in productivity—download BlitzCheck today! © 2024 Rayane Aberkane, also known as Nyrroz. All rights reserved.

Screenshots

Underload3 screens
BlitzCheck4 screens

Verdict

The call

The clearest difference is update cadence: BlitzCheck at every 3 days against Underload's monthly. BlitzCheck also leads on ratings volume (7 vs 1) and iOS requirement (13.0 vs 17.0). Underload's advantage is price ($4.99 vs $6.99). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Underload costs $4.99 and BlitzCheck $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Underload against 5.0 for BlitzCheck. That said, the two scores are not equally well evidenced: BlitzCheck has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Underload ships an update monthly, BlitzCheck every 3 days. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Underload versus BlitzCheck: the parameters behind the verdict, then further details
ParameterUnderloadBlitzCheck
Price$4.99 — better$6.99
Rating5.0 (1 ratings)5.0 (7 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings17 — better
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size2 MB22 MB
Age rating4+4+
DeveloperAnuradha VellineniRayane Aberkane

Customer experience

Underload

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

BlitzCheck

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Underload

No in-app purchases

None

BlitzCheck

No in-app purchases

Questions

Is Underload free?
Underload costs $4.99, with no in-app purchases.
Is BlitzCheck free?
BlitzCheck costs $6.99, with no in-app purchases.
Which has better reviews, Underload or BlitzCheck?
Underload and BlitzCheck are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.
Do Underload or BlitzCheck have ads?
Neither Underload nor BlitzCheck shows ads.
Which is updated more often, Underload or BlitzCheck?
Underload ships an update monthly, and BlitzCheck every 3 days. Most recently, Underload was updated on October 30, 2026 and BlitzCheck on October 16, 2026.

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