Comparison

Rebars+ vs NanoBattery

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

Head to head
About

Rebars+

Calculate the area of steel rebars for beams, slabs, and shear reinforcement. Supports standard US, Canadian, and European rebar sizes in both metric and non-metric units.

Highlights
  • Beam Reinforcement calculator
  • Slab Reinforcement calculator
  • Shear Reinforcement calculator
  • US, Canadian, and European rebar sizes
  • Metric and non-metric units
Features
Read full description

Easy calculator for area of steel rebars Quickly find the area of steel rebars - based on "total number" or "spacing" - for "beams", "slabs" and "shear reinforcement". It's very useful for civil engineers / structural engineers. Includes standard US, CA, and European rebar sizes (metric and non-metric units). FEATURES • Beam Reinforcement calculator (area for a given number of rebars) • Slab Reinforcement calculator (area for rebars based on their spacing) • Shear Reinforcement calculator (area of stirrup legs for the specified spacing) REBAR SIZES / UNITS • US (#) rebar sizes with non-metric units (inch, foot) • Canadian (M) rebar sizes with metric units (mm, m) • European (Φ) standard rebar sizes with metric units (cm, m)

About

NanoBattery

Features
Read full description

NanoBattery is the essential utility for your Apple Watch. Stop guessing how much power is left on your wrist. NanoBattery seamlessly syncs your Apple Watch battery level to your iPhone, keeping you informed at a glance. Designed with a sleek "Black & Yellow" aesthetic perfect for OLED screens, NanoBattery feels right at home on your modern iOS device. KEY FEATURES: • Instant Monitoring: Check your Watch battery level directly from the app dashboard. • Smart Widgets: Add beautiful widgets to your Home Screen and Lock Screen to track power levels without unlocking your phone. • Dynamic Island & Live Activities: Keep an eye on your battery in real-time with support for the latest iOS features. • Custom Alerts: Receive a notification on your iPhone when your Watch battery drops below a specific threshold (e.g., 20%). • Battery-Friendly: Uses efficient background refresh technology to sync data without draining your device. HOW IT WORKS: NanoBattery uses background app refresh to periodically fetch data from your Watch (typically every 15-20 minutes) or instantly when you open the app or tap the widget. PRIVACY FIRST: No data collection, no tracking. Your battery data stays between your devices. Download NanoBattery today and never let your Watch run out of power unexpectedly!

Screenshots

Rebars+4 screens
NanoBattery4 screens

Verdict

The call

The clearest difference is price: NanoBattery at Free against Rebars+'s $0.99. Rebars+'s advantage is iOS requirement (9.0 vs 17.6). On ads, in-app purchases 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

NanoBattery is free to download; Rebars+ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
Rebars+ versus NanoBattery: the parameters behind the verdict, then further details
ParameterRebars+NanoBattery
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 11 months—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS9.0 — better17.6
Further details — not scored
Size14 MB16 MB
Age rating4+4+
DeveloperKamran SaberihaghighiGiovanni Outerleys

In-app purchases

None

Rebars+

No in-app purchases

None

NanoBattery

No in-app purchases

Questions

Is Rebars+ free?
Rebars+ costs $0.99, with no in-app purchases.
Is NanoBattery free?
NanoBattery is free to download, with no in-app purchases.
Do Rebars+ or NanoBattery have ads?
Neither Rebars+ nor NanoBattery shows ads.

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