Comparison

Sidebar | Fast Notes vs Achromator

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

Head to head
About

Sidebar | Fast Notes

Quickly capture thoughts and ideas without the need for organization. Entries are timestamped logs that can be tagged as to-dos or personal wins/losses. Syncs across devices with custom themes and a stealth mode.

Highlights
  • Instant note capture
  • Timestamped entries
  • To-do list integration
  • Personal scoreboard
  • Cross-device sync
  • Custom themes
  • Stealth mode
Features
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Open. Type. Done. Sidebar opens with the keyboard ready, so you can catch an idea in seconds and get back to what you were doing. No folders, no file names, no formatting. Just get it down before it's gone. EVERY ENTRY IS A LOG Notes are quick, timestamped logs, not documents. Add a tag when one needs to do more: - Todo: adds it to your task list - Win or Loss: counts toward your scoreboard - Love: marks the ideas worth coming back to KEEP SCORE Track wins and losses for anything: running, flossing, screen time. Your scoreboard shows what's on track and what needs attention. MAKE IT YOURS Choose any color for your theme. AND A FEW EXTRAS - Widget: pin an idea to your home screen - Sync across iPhone, iPad, and Mac - Stealth Mode: keep sensitive notes private - Time Travel: revisit a random day

About

Achromator

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Ever wondered why everyone keeps going on about the beautiful colors of the sunset? Having trouble seeing if a tomato is ripe? What about bananas? Or maybe you just find the world to colorful and want to keep it a little more black-and-white for the day? Achromator translates all color from the phone video stream into unique animated textures. It encodes all hues and shades - without loss of information! It even keeps much of the structure found in color, like mixing, gradual blending and complementary hues. The pattern generator can be adjusted to your personal preference - pattern size, speed and selection of individual colors.

Screenshots

Sidebar | Fast Notes4 screens
Achromator3 screens

Verdict

The call

Sidebar | Fast Notes and Achromator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sidebar | Fast Notes ships an update every 2 months, Achromator monthly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Sidebar | Fast Notes versus Achromator: the parameters behind the verdict, then further details
ParameterSidebar | Fast NotesAchromator
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.617.6 — better
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperChris WoodsHANS-JURGEN GRAF GROTE

In-app purchases

None

Sidebar | Fast Notes

No in-app purchases

None

Achromator

No in-app purchases

Questions

Is Sidebar | Fast Notes free?
Sidebar | Fast Notes is free to download, with no in-app purchases.
Is Achromator free?
Achromator is free to download, with no in-app purchases.
Do Sidebar | Fast Notes or Achromator have ads?
Neither Sidebar | Fast Notes nor Achromator shows ads.
Which is updated more often, Sidebar | Fast Notes or Achromator?
Sidebar | Fast Notes ships an update every 2 months, and Achromator monthly. Most recently, Sidebar | Fast Notes was updated on November 3, 2026 and Achromator on October 25, 2026.

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