Comparison

Spill Calc vs FocusFlow Timer

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

Head to head
About

Spill Calc

This app provides rapid, dependable spill volume estimations for field professionals. It calculates liquid volumes across various shapes and ground conditions, supporting mixed fluids and tank displacement for accurate reporting.

Highlights
  • Fast spill volume calculations
  • Multiple spill types supported
  • Mixed fluid calculations
  • Tank displacement accounting
  • Section-based spill tracking
  • Save and organize spill history
  • Export reports via text or email
Features
Read full description

Spill Calc Pro is your all-in-one mobile tool for fast, reliable spill volume estimates — built for real-world field use. Designed for oil & gas professionals, environmental responders, and site managers, it helps you quickly calculate liquid spill volumes across multiple shapes and ground conditions. Key Features: Fast Calculations – Enter dimensions and get instant results in barrels and gallons Multiple Spill Types – Standing liquid, saturated soil, and contained areas Mixed Fluid Support – Calculate oil and water splits with ease Tank Displacement – Account for equipment inside containment areas Section-Based Tracking – Break spills into multiple sections for accuracy Save & Organize – Keep a history of spills for reporting and compliance Export & Share – Generate clean reports via text or email Built-In Help – Quick guidance when you need it in the field Whether you’re handling a small containment or a large-scale incident, Spill Calc Pro simplifies the math and delivers answers fast—so you can stay focused on the job.

About

FocusFlow Timer

Boost productivity with a Pomodoro technique timer. Customize work and break durations, manage tasks, and track progress with detailed statistics and gamified achievements. Prevent burnout by balancing focused work with strategic rest.

Highlights
  • Customizable Pomodoro timer
  • Integrated task management
  • Detailed productivity statistics
  • Session history with notes
  • Gamified achievement system
  • Distraction-free interface with dark mode
Features
Read full description

Boost your productivity and maintain focus with FocusFlow Timer, a beautifully designed Pomodoro technique timer that helps you work efficiently and take breaks strategically. Why FocusFlow Timer? • Elegant, distraction-free interface with dark mode • Fully customizable work, short break, and long break durations • Task management system integrated with your focus sessions • Detailed statistics to track your productivity • Session history with notes and ratings • Achievement system to keep you motivated Key Features: Customizable Timer: • Set your ideal work duration (15-60 minutes) • Adjust short breaks (3-15 minutes) and long breaks (15-30 minutes) • Customize sessions count before long breaks • Auto-start options for breaks and work sessions Task Management: • Create and manage tasks directly in the app • Associate focus sessions with specific tasks • Track completion status and session counts per task • Easily mark tasks as complete with swipe gestures Comprehensive Statistics: • View daily, weekly, and monthly progress • Track total focus time and completed sessions • Monitor your daily goals and achievement progress • Visualize your productivity trends Session History: • Review all your past focus and break sessions • Rate and take notes on your focus sessions • Filter and search through your session history • Analyze your most productive times Focus Enhancement: • Visual progress indicators during sessions • Sound and vibration notifications • Do Not Disturb mode integration guide • Achievement system to gamify your productivity Whether you're studying for exams, working on projects, or need to maintain focus during any task, FocusFlow Timer provides the perfect balance of work and rest to maximize your productivity while preventing burnout. Download FocusFlow Timer today and transform your work habits with the power of focused intervals and strategic breaks!

Screenshots

Spill Calc4 screens
FocusFlow Timer4 screens

Verdict

The call

The clearest difference is review sentiment: FocusFlow Timer at 50% against Spill Calc's 0%. FocusFlow Timer also leads on price (Free vs $2.99) and rating (5.0 vs 4.0). Spill Calc's advantage is in-app purchases (none vs 4) and chart position (#187 vs unranked). On ads, device support and iOS requirement 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

FocusFlow Timer is free to download; Spill Calc costs $2.99 up front. FocusFlow Timer sells 4 one-off in-app purchases. Spill Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FocusFlow Timer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 0% of Spill Calc's written reviews are positive against 50% of FocusFlow Timer's.

UpkeepUpdate frequency

Spill Calc ships an update every 31 months, FocusFlow Timer every 3 months. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard8 real differences · 3 level
Spill Calc versus FocusFlow Timer: the parameters behind the verdict, then further details
ParameterSpill CalcFocusFlow Timer
Price$2.99Free — better
Rating4.0 (3 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 31 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#187 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.616.4 — better
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperKelly GayneauxNguyen Toan Le

Customer experience

Spill Calc

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

FocusFlow Timer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Spill Calc

No in-app purchases

4 purchases

FocusFlow Timer

One-time4
  • Small Coffee$0.99
  • Big Coffee$2.99
  • Lunch Money$4.99
Show 1 more
  • Generous Support$9.99

Questions

Is Spill Calc free?
Spill Calc costs $2.99, with no in-app purchases.
Is FocusFlow Timer free?
FocusFlow Timer is free to download, with in-app purchases available.
Which has better reviews, Spill Calc or FocusFlow Timer?
FocusFlow Timer is rated higher. Spill Calc averages 4.0 out of 5 from 3 ratings, while FocusFlow Timer averages 5.0 from 1 ratings.
Do Spill Calc or FocusFlow Timer have ads?
Neither Spill Calc nor FocusFlow Timer shows ads.
Which is updated more often, Spill Calc or FocusFlow Timer?
Spill Calc ships an update every 31 months, and FocusFlow Timer every 3 months. Most recently, Spill Calc was updated on October 1, 2026 and FocusFlow Timer on September 30, 2026.

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