Comparison

BRAVER'S Σ vs GRID DEFENSE

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

Head to head
About

BRAVER'S Σ

Craft unique characters by allocating stats and combining over 150 abilities across 7 arcade battles. Engage in strategic real-time combat with formation tactics and powerful character surges. Explore PvE adventures or test your builds in real-time PvP.

Highlights
  • Free stat allocation
  • 150+ unique abilities
  • SPD-based skill gauge
  • Front & back row formation
  • Arcade, Exploration, and PvP modes
  • Gacha character upgrades
  • Equipment system
Features
Read full description

■ What is BRAVER'S Σ? Create your ultimate "Braver" in just 7 arcade battles. Freely allocate 4 core stats — Spirit, Technique, Body, and Magic — and combine over 150 abilities to craft unique strategic builds. No two runs are the same. Your choices define the strongest Braver. ■ The Braver System 【Free Stat Allocation】 Distribute points across 4 parameters between battles. The same character plays completely differently depending on your allocation, offering endless build variety. 【Braver Mode】 A powerful surge that activates based on star level. When triggered, your character's abilities are massively enhanced — turning the tide of battle in a single moment. ■ Strategic Battle System 【SPD-Based Skill Gauge】 Skill gauges fill based on Speed in real-time combat. Timing your skills and controlling turn order are keys to victory. 【Front & Back Row Formation】 Deploy 4 characters in a 2 front + 2 back formation. Front-row fighters deal heavy damage but take more hits. Back-row units excel at support and healing. 【Diverse Playable Characters】 A growing roster of characters, each with unique abilities and skills. From attackers and tanks to healers and buffers — assemble the ultimate party. 【150+ Abilities】 Combine over 150 abilities spanning attack boosts, defense buffs, status effects, healing, and more. Every arcade run creates a brand new build experience. ■ Three Game Modes 【Arcade Mode】 The core experience. Raise characters through 7 battles, allocating stats and acquiring abilities between fights. Short but deeply strategic sessions. 【Exploration Mode】 A PvE adventure with stories, diverse maps, and item collection to strengthen your team. 【Colosseum】 Test your builds against other players in real-time PvP. Climb the rankings and prove you're the ultimate Braver Master. ■ Character Growth & Gacha - 6-tier star system (Star 1 to Star 6) with increasing Braver Mode activation - Gacha pulls earn Σ Points for targeted character upgrades - 10-pull guarantees with high-rarity slots and bonus points - Equipment system to expand build options ■ Recommended For - Fans of stat allocation and build crafting - Players who love short but deep gameplay sessions - Strategy RPG enthusiasts - Competitive PvP players - Anime-style RPG lovers ■ Supported Languages 日本語 / English / 한국어 / 繁體中文 ■ Support Contact us through the in-game settings screen.

About

GRID DEFENSE

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Tower defense strategy against an AI robot army, and a carrier war in the sky. Build towers, lead six heroes and drop a nuke when the horde breaks through. Then take command of a flying carrier for air combat over 25 real cities. Every mode is free to play. New in 1.2.0: every mode is now free. Scenario, Basic, World and GRID COMMAND are all open from the start. New in 1.1.0: GRID COMMAND • Fly your carrier over 25 real cities, with bigger arenas and more enemies • A clean phone HUD: a fixed stick and four buttons (Build, Ultimate, Boost, Attack), and the hull bar right on your carrier • Carrier towers: build all six side towers from one panel • Helicopters airdrop your ground towers into the fight • Rescued heroes hang under the carrier and keep fighting • Call in the I-series units, with IRIS on the radio • Realistic 3D enemy missiles: read the strike zone and boost clear • Rise through the commander ranks Tower defense, sharper • New players start straight in the free Scenario campaign • Guided first battles in Basic and World • Hero mastery stars and upgrades • Paired boss gauges when two giants attack at once Build your defense line Place 22 tower types: artillery, freezing, electric, laser, anti-air and more. Robot troops, tanks and aircraft hit your line from every side. Where you build matters as much as what you build. Six heroes, six jobs • VANGUARD – fast assault on the front line • LONGVIEW – long-range sniper • BULWARK – heavy area bombardment • MENDER – repairs damaged buildings • TINKER – powers up nearby towers • SKYWARD – heavy rockets against ground and air Call in the big guns Pick from 26 support cards and unleash ultimate strikes: airstrikes, missile barrages, EMP and nukes. Fire now to stop this wave, or save it for the one behind it. Real cities, giant bosses In World mode your battlefield sits among the outskirts of 15 real cities. 20 giant bosses march straight into your tower line. What's inside • Scenario: 100 stages in 10 chapters (free) • Basic: 10 tower defense maps (free) • World: 15 real-city battlefields (free) • GRID COMMAND: 25 cities of carrier air combat (free) • 22 towers, 6 heroes, 26 support cards, 20 bosses Free to play • All modes are free: Scenario, Basic, World and GRID COMMAND. • The game shows ads. A one-time Remove Ads purchase turns off automatic ads. No subscription. • Watch an optional ad on the result screen to double your gold. Play anywhere • Free with ads (one-time Remove Ads available) • 12 languages • Landscape, for phones and tablets GRID DEFENSE: GRID WAR. The robots are coming. Hold the line.

Screenshots

BRAVER'S Σ4 screens
GRID DEFENSE4 screens

Verdict

The call

The clearest difference is ads: BRAVER'S Σ at none against GRID DEFENSE's shown. BRAVER'S Σ also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, 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

Both are free to download. BRAVER'S Σ sells 7 one-off in-app purchases and GRID DEFENSE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BRAVER'S Σ ships an update weekly, GRID DEFENSE every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 7 level
BRAVER'S Σ versus GRID DEFENSE: the parameters behind the verdict, then further details
ParameterBRAVER'S ΣGRID DEFENSE
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size104 MB657 MB
Age rating12+12+
DeveloperYuto MaedaTENMILES

In-app purchases

7 purchases

BRAVER'S Σ

One-time7
  • 虹の石 10個$1.99
  • 虹の石 50個 初回限定$2.99
  • 虹の石 50個$5.99
Show 4 more
  • 虹の石 100個$9.99
  • 虹の石 250個$19.99
  • 虹の石 500個$29.99
  • 虹の石 1200個$59.99
1 purchases

GRID DEFENSE

One-time1
  • Remove Ads$4.90

Questions

Is BRAVER'S Σ free?
BRAVER'S Σ is free to download, with in-app purchases available.
Is GRID DEFENSE free?
GRID DEFENSE is free to download, with in-app purchases available.
Do BRAVER'S Σ or GRID DEFENSE have ads?
GRID DEFENSE shows ads; BRAVER'S Σ does not.
Which is updated more often, BRAVER'S Σ or GRID DEFENSE?
BRAVER'S Σ ships an update weekly, and GRID DEFENSE every 4 days. Most recently, BRAVER'S Σ was updated on October 31, 2026 and GRID DEFENSE on November 6, 2026.

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